rmobile: kconfig: move board select menu and common settings

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

Consolidate also common settings (CONFIG_SYS_CPU="armv7" and
CONFIG_SYS_SOC="rmobile").

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>

board/atmark-techno/armadillo-800eva/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_ARMADILLO_800EVA
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "armadillo-800eva"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "atmark-techno"
 
-config SYS_SOC
-	string
-	default "rmobile"
-
 config SYS_CONFIG_NAME
 	string
 	default "armadillo-800eva"

board/kmc/kzm9g/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_KZM9G
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "kzm9g"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "kmc"
 
-config SYS_SOC
-	string
-	default "rmobile"
-
 config SYS_CONFIG_NAME
 	string
 	default "kzm9g"

board/renesas/alt/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_ALT
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "alt"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "renesas"
 
-config SYS_SOC
-	string
-	default "rmobile"
-
 config SYS_CONFIG_NAME
 	string
 	default "alt"

board/renesas/koelsch/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_KOELSCH
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "koelsch"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "renesas"
 
-config SYS_SOC
-	string
-	default "rmobile"
-
 config SYS_CONFIG_NAME
 	string
 	default "koelsch"

board/renesas/lager/Kconfig

@@ -1,9 +1,5 @@
 if TARGET_LAGER
 
-config SYS_CPU
-	string
-	default "armv7"
-
 config SYS_BOARD
 	string
 	default "lager"
@@ -12,10 +8,6 @@ config SYS_VENDOR
 	string
 	default "renesas"
 
-config SYS_SOC
-	string
-	default "rmobile"
-
 config SYS_CONFIG_NAME
 	string
 	default "lager"