drm/radeon: fix power supply kconfig interaction.

radeon needs power supply to get correct PM info so select it at the radeon
level not at the kms option.
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/Kconfig

@@ -60,6 +60,7 @@ config DRM_RADEON
 	select FW_LOADER
         select DRM_KMS_HELPER
         select DRM_TTM
+	select POWER_SUPPLY
 	help
 	  Choose this option if you have an ATI Radeon graphics card.  There
 	  are both PCI and AGP versions.  You don't need to choose this to

drivers/gpu/drm/radeon/Kconfig

 config DRM_RADEON_KMS
 	bool "Enable modesetting on radeon by default - NEW DRIVER"
 	depends on DRM_RADEON
-	depends on POWER_SUPPLY
 	help
 	  Choose this option if you want kernel modesetting enabled by default.