This patch (re)adds ARCH_BCM_MOBILE option to bcm_defconfig which was
accidentally removed by commit 2d58b26550ad ('ARM: bcm_defconfig: Run
"make savedefconfig"')
Signed-off-by: Christian Daudt <bcm@fixthebug.org> Signed-off-by: Olof Johansson <olof@lixom.net>