omap5: kconfig: move board select menu and common settings

Becuase the board select menu in arch/arm/Kconfig is too big,
move the OMAP5 board select menu to omap5/Kconfig.

Move also common settings (CONFIG_SYS_CPU="armv7" and
CONFIG_SYS_SOC="omap5").

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Tom Rini <trini@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>

board/compulab/cm_t54/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_CM_T54
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "cm_t54"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "compulab"
 
-config SYS_SOC
-	string
-	default "omap5"
-
 config SYS_CONFIG_NAME
 	string
 	default "cm_t54"

board/ti/dra7xx/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_DRA7XX_EVM
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "dra7xx"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "ti"
 
-config SYS_SOC
-	string
-	default "omap5"
-
 config SYS_CONFIG_NAME
 	string
 	default "dra7xx_evm"

board/ti/omap5_uevm/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_OMAP5_UEVM
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "omap5_uevm"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "ti"
 
-config SYS_SOC
-	string
-	default "omap5"
-
 config SYS_CONFIG_NAME
 	string
 	default "omap5_uevm"