Since commit a521422e  ("ARM: shmobile: mackerel: Remove Legacy C
board code") MERAM functionality is unused. Remove it.
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NDaniel Vetter <daniel@ffwll.ch>
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>