sbc8349: combine HRCW flash and u-boot image flash

Up to this point in time, the sbc8349 board was storing the u-boot
image in flash 2x.  One for the HRCW value at the beginning of
flash (0xff80_0000), and once close to the end of flash (0xfff8_0000)
for the actual image that got executed.

This moves the TEXT_BASE to be the beginning of flash, which makes
the second copy of the image redundant, and frees up the flash
from the end of the environment storage to the end of the flash
device itself.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/include/configs/sbc8349.h b/include/configs/sbc8349.h
index 84a251a..868bd54 100644
--- a/include/configs/sbc8349.h
+++ b/include/configs/sbc8349.h
@@ -651,8 +651,8 @@
 	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"	\
 		"bootm\0"						\
 	"load=tftp 100000 /tftpboot/sbc8349/u-boot.bin\0"		\
-	"update=protect off fff00000 fff3ffff; "			\
-		"era fff00000 fff3ffff; cp.b 100000 fff00000 ${filesize}\0"	\
+	"update=protect off ff800000 ff83ffff; "			\
+		"era ff800000 ff83ffff; cp.b 100000 ff800000 ${filesize}\0"	\
 	"upd=run load update\0"						\
 	"fdtaddr=400000\0"						\
 	"fdtfile=sbc8349.dtb\0"						\