vmwgfx: Take the driver out of staging

Also improve a bit on the Kconfig help.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index e405e61..785127c 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -159,4 +159,6 @@
 	  Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister
 	  chipset. If M is selected the module will be called savage.
 
-source "drivers/gpu/drm/exynos/Kconfig"
\ No newline at end of file
+source "drivers/gpu/drm/exynos/Kconfig"
+
+source "drivers/gpu/drm/vmwgfx/Kconfig"