ARM: shmobile: Use ->init_late() on Lager

Hook in shmobile_init_late() on Lager V2. This enables some PM
related things like CPUIdle and Suspend-to-RAM.

With this patch applied it is possible to use Suspend-to-RAM:
# echo enabled > /sys/class/tty/ttySC6/power/wakeup
# echo mem > /sys/power/state
(wake by sending a character on the serial console)

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/board-lager-reference.c

@@ -20,6 +20,7 @@
 
 #include <linux/init.h>
 #include <linux/of_platform.h>
+#include <mach/common.h>
 #include <mach/rcar-gen2.h>
 #include <mach/r8a7790.h>
 #include <asm/mach/arch.h>
@@ -41,5 +42,6 @@ DT_MACHINE_START(LAGER_DT, "lager")
 	.init_early	= r8a7790_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_add_standard_devices,
+	.init_late	= shmobile_init_late,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END

arch/arm/mach-shmobile/board-lager.c

@@ -259,5 +259,6 @@ DT_MACHINE_START(LAGER_DT, "lager")
 	.init_early	= r8a7790_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_init,
+	.init_late	= shmobile_init_late,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END