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>
diff --git a/arch/arm/cpu/armv7/omap5/Kconfig b/arch/arm/cpu/armv7/omap5/Kconfig
new file mode 100644
index 0000000..be80393
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap5/Kconfig
@@ -0,0 +1,29 @@
+if OMAP54XX
+
+choice
+	prompt "OMAP5 board select"
+
+config TARGET_CM_T54
+	bool "CompuLab CM-T54"
+
+config TARGET_OMAP5_UEVM
+	bool "TI OMAP5 uEVM board"
+
+config TARGET_DRA7XX_EVM
+	bool "TI DRA7XX"
+
+endchoice
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_SOC
+	string
+	default "omap5"
+
+source "board/compulab/cm_t54/Kconfig"
+source "board/ti/omap5_uevm/Kconfig"
+source "board/ti/dra7xx/Kconfig"
+
+endif