ARM: davinci: Move CONFIG_SYS_DA850_DDR_INIT to Kconfig

Clean config headers by moving CONFIG_SYS_DA850_DDR_INIT away to a
Kconfig file.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index ffb9a45..cf4ee16 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -8,11 +8,13 @@
 	bool "IPAM390 board"
 	select SUPPORT_SPL
 	select SYS_DA850_PLL_INIT
+	select SYS_DA850_DDR_INIT
 
 config TARGET_DA850EVM
 	bool "DA850 EVM board"
 	select SUPPORT_SPL
 	select SYS_DA850_PLL_INIT
+	select SYS_DA850_DDR_INIT
 
 config TARGET_EA20
 	bool "EA20 board"
@@ -24,10 +26,12 @@
 config TARGET_CALIMAIN
 	bool "Calimain board"
 	select SYS_DA850_PLL_INIT
+	select SYS_DA850_DDR_INIT
 
 config TARGET_LEGOEV3
 	bool "LEGO MINDSTORMS EV3"
 	select SYS_DA850_PLL_INIT
+	select SYS_DA850_DDR_INIT
 
 endchoice
 
@@ -37,6 +41,9 @@
 config SYS_DA850_PLL_INIT
 	bool
 
+config SYS_DA850_DDR_INIT
+	bool
+
 source "board/Barix/ipam390/Kconfig"
 source "board/davinci/da8xxevm/Kconfig"
 source "board/davinci/ea20/Kconfig"