fbdev: Restrict FB_SH_MOBILE_LCDC to SuperH

Since commit f402f7a0 ("staging: board: Remove Armadillo-800-EVA
board staging code"), there are no more users of the legacy SuperH
Mobile LCDC framebuffer driver on Renesas ARM platforms.  All former
users on these platforms have been converted to the SH-Mobile DRM
driver, using DT.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/Kconfig

@@ -1554,7 +1554,7 @@ config FB_FSL_DIU
 config FB_SH_MOBILE_LCDC
 	tristate "SuperH Mobile LCDC framebuffer support"
 	depends on FB && HAVE_CLK && HAS_IOMEM
-	depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
+	depends on SUPERH || COMPILE_TEST
 	depends on FB_DEVICE
 	select FB_BACKLIGHT
 	select FB_DEFERRED_IO