Davinci 8xx: Move common functions to share code

As more Davinci 8xx board can be added, move common code
to be shared between boards.

 * rebased ontop of Sugosh's patches
 * moving the HAWKBOARD_KICK{0,1}_UNLOCK defines to
   arch/arm/include/asm/arch-davinci/davinci_misc.h from to
   arch/arm/include/asm/arch-davinci/da8xx_common.h
 * don't define dram functions in PRELOADER
 * move sync_env_enetaddr into existing EMAC ifdef
 * use misc.c in hawkboard nand_spl

Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/nand_spl/board/davinci/da8xxevm/Makefile b/nand_spl/board/davinci/da8xxevm/Makefile
index 6102675..4cae223 100644
--- a/nand_spl/board/davinci/da8xxevm/Makefile
+++ b/nand_spl/board/davinci/da8xxevm/Makefile
@@ -35,7 +35,7 @@
 
 SOBJS	= start.o _udivsi3.o _divsi3.o
 COBJS	= cpu.o davinci_nand.o ns16550.o div0.o davinci_pinmux.o psc.o	\
-	common.o hawkboard_nand_spl.o nand_boot.o
+	misc.o hawkboard_nand_spl.o nand_boot.o
 
 SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
@@ -116,9 +116,9 @@
 	ln -s $(TOPDIR)/board/davinci/da8xxevm/hawkboard_nand_spl.c $@
 
 # from board directory
-$(obj)common.c:
+$(obj)misc.c:
 	@rm -f $@
-	ln -s $(TOPDIR)/board/davinci/da8xxevm/common.c $@
+	ln -s $(TOPDIR)/board/davinci/common/misc.c $@
 
 $(obj)psc.c:
 	@rm -f $@