ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config

This patch (re)adds ARCH_BCM_MOBILE option to bcm_defconfig which was
accidentally removed by commit 2d58b265 ('ARM: bcm_defconfig: Run
"make savedefconfig"')
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/configs/bcm_defconfig

@@ -25,6 +25,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARM_THUMBEE=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y