drivers/gpu/drm/gma500: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Dave Airlie <[e-mail]>
CC: Alan Cox <[e-mail]>
CC: "Kirill A. Shutemov" <[e-mail]>
Signed-off-by: Kees Cook <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/gpu/drm/gma500/Kconfig

···
 config DRM_GMA500
 	tristate "Intel GMA5/600 KMS Framebuffer"
-	depends on DRM && PCI && X86 && EXPERIMENTAL
+	depends on DRM && PCI && X86
 	select FB_CFB_COPYAREA
         select FB_CFB_FILLRECT
         select FB_CFB_IMAGEBLIT