ARM: shmobile: genmai: Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY

The ARCH_SHMOBILE configuration option has been renamed to
ARCH_SHMOBILE_LEGACY. Update the defconfig accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Magnus Damm <damm@opensource.se>
[ horms+renesas@verge.net.au: Removed non-genmai changes which
  have been squashed into "ARM: Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY". ]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/genmai_defconfig

@@ -12,7 +12,7 @@ CONFIG_SLAB=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARCH_SHMOBILE=y
+CONFIG_ARCH_SHMOBILE_LEGACY=y
 CONFIG_ARCH_R7S72100=y
 CONFIG_MACH_GENMAI=y
 # CONFIG_SH_TIMER_CMT is not set