powerpc/85xx: Enable gpio power/reset driver

These config changes build:
drivers/power/reset/gpio-poweroff.c
drivers/power/reset/gpio-restart.c
Signed-off-by: NAndy Fleming <afleming@gmail.com>
Signed-off-by: NScott Wood <oss@buserror.net>

arch/powerpc/configs/fsl-emb-nonhw.config

@@ -44,6 +44,7 @@ CONFIG_FORCE_MAX_ZONEORDER=13
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAME_WARN=1024
 CONFIG_FTL=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
 CONFIG_HFS_FS=m
 CONFIG_HFSPLUS_FS=m
 CONFIG_HIGH_RES_TIMERS=y
@@ -104,8 +105,13 @@ CONFIG_PACKET=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_PERF_EVENTS=y
 CONFIG_POSIX_MQUEUE=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_GPIO=y
+CONFIG_POWER_RESET_GPIO_RESTART=y
 CONFIG_QNX4FS_FS=m
 CONFIG_RCU_TRACE=y
+CONFIG_RESET_CONTROLLER=y
 CONFIG_ROOT_NFS=y
 CONFIG_SYSV_FS=m
 CONFIG_SYSVIPC=y