video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency

Since commit a521422e ("ARM: shmobile: mackerel: Remove Legacy C
board code"), the only remaining platforms using this driver are SuperH
SH-Mobile SoCs (sh7723).  As both SUPERH and ARCH_SHMOBILE are set for
these platforms, the SUPERH dependency can be dropped.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

drivers/video/fbdev/Kconfig

@@ -2348,7 +2348,7 @@ source "drivers/video/fbdev/mmp/Kconfig"
 
 config FB_SH_MOBILE_MERAM
 	tristate "SuperH Mobile MERAM read ahead support"
-	depends on (SUPERH || ARCH_SHMOBILE)
+	depends on ARCH_SHMOBILE
 	select GENERIC_ALLOCATOR
 	---help---
 	  Enable MERAM support for the SuperH controller.