Fix NAND booting make target

Without this fix, the NAND_SPL target (in nand_spl/) is not built
at all for those boards defining NAND_U_BOOT=y in boards.cfg.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
diff --git a/boards.cfg b/boards.cfg
index 08e531e..a37ccc5 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -327,16 +327,16 @@
 alpr		powerpc	ppc4xx		-		prodrive
 p3p440		powerpc	ppc4xx		-		prodrive
 KAREF		powerpc	ppc4xx		karef		sandburst
-acadia_nand		powerpc	ppc4xx	acadia		amcc		-	acadia:NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
-bamboo_nand		powerpc	ppc4xx	bamboo		amcc		-	bamboo:NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
-haleakala_nand		powerpc	ppc4xx	kilauea		amcc		-	kilauea:NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+acadia_nand		powerpc	ppc4xx	acadia		amcc		-	acadia:NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
+bamboo_nand		powerpc	ppc4xx	bamboo		amcc		-	bamboo:NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
+haleakala_nand		powerpc	ppc4xx	kilauea		amcc		-	kilauea:NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 kilauea		powerpc	ppc4xx		kilauea		amcc		-	kilauea:KILAUEA
-kilauea_nand		powerpc	ppc4xx	kilauea		amcc		-	kilauea:NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+kilauea_nand		powerpc	ppc4xx	kilauea		amcc		-	kilauea:NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 rainier		powerpc	ppc4xx		sequoia		amcc		-	sequoia:RAINIER
-rainier_nand		powerpc	ppc4xx	sequoia		amcc		-	sequoia:RAINIER,NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+rainier_nand		powerpc	ppc4xx	sequoia		amcc		-	sequoia:RAINIER,NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 rainier_ramboot		powerpc	ppc4xx	sequoia		amcc		-	sequoia:RAINIER,SYS_RAMBOOT,SYS_TEXT_BASE=0x01000000,SYS_LDSCRIPT=board/amcc/sequoia/u-boot-ram.lds
 sequoia		powerpc	ppc4xx		sequoia		amcc		-	sequoia:SEQUOIA
-sequoia_nand		powerpc	ppc4xx	sequoia		amcc		-	sequoia:SEQUOIA,NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+sequoia_nand		powerpc	ppc4xx	sequoia		amcc		-	sequoia:SEQUOIA,NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 sequoia_ramboot		powerpc	ppc4xx	sequoia		amcc		-	sequoia:SEQUOIA,SYS_RAMBOOT,SYS_TEXT_BASE=0x01000000,SYS_LDSCRIPT=board/amcc/sequoia/u-boot-ram.lds
 fx12mm		powerpc	ppc4xx		fx12mm		avnet		-	fx12mm:SYS_TEXT_BASE=0x03000000,SYS_LDSCRIPT=$(SRCTREE)/board/xilinx/ppc405-generic/u-boot-ram.lds
 fx12mm_flash		powerpc	ppc4xx	fx12mm		avnet		-	fx12mm:SYS_TEXT_BASE=0xFFCB0000,SYS_LDSCRIPT=$(SRCTREE)/board/xilinx/ppc405-generic/u-boot-rom.lds
@@ -346,7 +346,7 @@
 ml507_flash		powerpc	ppc4xx	ml507		xilinx		-	ml507:SYS_TEXT_BASE=0xFE360000,SYS_LDSCRIPT=$(SRCTREE)/board/xilinx/ppc440-generic/u-boot-rom.lds
 arches		powerpc	ppc4xx		canyonlands	amcc		-	canyonlands:ARCHES
 glacier		powerpc	ppc4xx		canyonlands	amcc		-	canyonlands:GLACIER
-glacier_nand		powerpc	ppc4xx	canyonlands	amcc		-	canyonlands:GLACIER,NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+glacier_nand		powerpc	ppc4xx	canyonlands	amcc		-	canyonlands:GLACIER,NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 v5fx30teval		powerpc	ppc4xx	v5fx30teval	avnet		-	v5fx30teval:SYS_TEXT_BASE=0x03000000,SYS_LDSCRIPT=$(SRCTREE)/board/xilinx/ppc440-generic/u-boot-ram.lds
 grsim		sparc	leon3		-		gaisler
 PM825_ROMBOOT_BIGFLASH	  powerpc  mpc8260  pm826	-		-	PM826:PCI,BOOT_ROM,FLASH_32MB,SYS_TEXT_BASE=0xFF800000
@@ -690,8 +690,8 @@
 PQ2FADS-ZU_66MHz  powerpc  mpc8260	mpc8260ads	freescale	-	MPC8260ADS:ADSTYPE=CONFIG_SYS_PQ2FADS,8260_CLKIN=66000000
 PQ2FADS-ZU_66MHz_lowboot  powerpc  mpc8260  mpc8260ads	freescale	-	MPC8260ADS:ADSTYPE=CONFIG_SYS_PQ2FADS,8260_CLKIN=66000000,SYS_TEXT_BASE=0xFF800000
 PQ2FADS-ZU_lowboot  powerpc  mpc8260	mpc8260ads	freescale	-	MPC8260ADS:ADSTYPE=CONFIG_SYS_PQ2FADS,SYS_TEXT_BASE=0xFF800000
-MPC8313ERDB_NAND_33  powerpc  mpc83xx	mpc8313erdb	freescale	-	MPC8313ERDB:SYS_33MHZ,NAND_U_BOOT=y,SYS_TEXT_BASE=0x00100000
-MPC8313ERDB_NAND_66  powerpc  mpc83xx	mpc8313erdb	freescale	-	MPC8313ERDB:SYS_66MHZ,NAND_U_BOOT=y,SYS_TEXT_BASE=0x00100000
+MPC8313ERDB_NAND_33  powerpc  mpc83xx	mpc8313erdb	freescale	-	MPC8313ERDB:SYS_33MHZ,NAND_U_BOOT,SYS_TEXT_BASE=0x00100000
+MPC8313ERDB_NAND_66  powerpc  mpc83xx	mpc8313erdb	freescale	-	MPC8313ERDB:SYS_66MHZ,NAND_U_BOOT,SYS_TEXT_BASE=0x00100000
 MPC8315ERDB_NAND  powerpc  mpc83xx	mpc8315erdb	freescale	-	MPC8315ERDB:NAND
 MPC832XEMDS_HOST_33  powerpc  mpc83xx	mpc832xemds	freescale	-	MPC832XEMDS:PCI,PCI_33M,PQ_MDS_PIB=1
 MPC832XEMDS_HOST_66  powerpc  mpc83xx	mpc832xemds	freescale	-	MPC832XEMDS:PCI,PCI_66M,PQ_MDS_PIB=1
@@ -716,7 +716,7 @@
 NETTA_6412_SWAPHOOK  powerpc  mpc8xx	netta		-		-	NETTA:NETTA_6412=1,NETTA_SWAPHOOK=1
 NETTA_ISDN_SWAPHOOK  powerpc  mpc8xx	netta		-		-	NETTA:NETTA_ISDN=1,NETTA_SWAPHOOK=1
 NETTA_ISDN_6412_SWAPHOOK  powerpc  mpc8xx  netta	-		-	NETTA:NETTA_ISDN=1,NETTA_6412=1,NETTA_SWAPHOOK=1
-canyonlands_nand  powerpc  ppc4xx	canyonlands	amcc		-	canyonlands:CANYONLANDS,NAND_U_BOOT=y,SYS_TEXT_BASE=0x01000000
+canyonlands_nand  powerpc  ppc4xx	canyonlands	amcc		-	canyonlands:CANYONLANDS,NAND_U_BOOT,SYS_TEXT_BASE=0x01000000
 v5fx30teval_flash  powerpc  ppc4xx	v5fx30teval	avnet		-	v5fx30teval:SYS_TEXT_BASE=0xFF1C0000,SYS_LDSCRIPT=$(SRCTREE)/board/xilinx/ppc440-generic/u-boot-rom.lds
 PPChameleonEVB_BA_25  powerpc  ppc4xx  PPChameleonEVB	dave		-	PPChameleonEVB:PPCHAMELEON_MODULE_MODEL=0,PPCHAMELEON_CLK_25
 PPChameleonEVB_BA_33  powerpc  ppc4xx  PPChameleonEVB	dave		-	PPChameleonEVB:PPCHAMELEON_MODULE_MODEL=0,PPCHAMELEON_CLK_33