ARM: shmobile: ape6evm: Enable PM Runtime in defconfig

This is consistent with other shmobile defconfigs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/ape6evm_defconfig

@@ -33,6 +33,7 @@ CONFIG_ARM_APPENDED_DTB=y
 CONFIG_VFP=y
 CONFIG_NEON=y
 CONFIG_BINFMT_MISC=y
+CONFIG_PM_RUNTIME=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y