ARM: davinci: Move CONFIG_SYS_DA850_PLL_INIT to Kconfig

Clean config headers by moving CONFIG_SYS_DA850_PLL_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 5d1c5c5..ffb9a45 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -7,10 +7,12 @@
 config TARGET_IPAM390
 	bool "IPAM390 board"
 	select SUPPORT_SPL
+	select SYS_DA850_PLL_INIT
 
 config TARGET_DA850EVM
 	bool "DA850 EVM board"
 	select SUPPORT_SPL
+	select SYS_DA850_PLL_INIT
 
 config TARGET_EA20
 	bool "EA20 board"
@@ -21,15 +23,20 @@
 
 config TARGET_CALIMAIN
 	bool "Calimain board"
+	select SYS_DA850_PLL_INIT
 
 config TARGET_LEGOEV3
 	bool "LEGO MINDSTORMS EV3"
+	select SYS_DA850_PLL_INIT
 
 endchoice
 
 config SYS_SOC
 	default "davinci"
 
+config SYS_DA850_PLL_INIT
+	bool
+
 source "board/Barix/ipam390/Kconfig"
 source "board/davinci/da8xxevm/Kconfig"
 source "board/davinci/ea20/Kconfig"