ARM: shmobile: defconfig: Disable CONFIG_FB_SH_MOBILE_MERAM

The last Renesas ARM platform using this driver was removed in commit
a521422ea4ae6128 ("ARM: shmobile: mackerel: Remove Legacy C board
code").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/shmobile_defconfig

@@ -157,7 +157,6 @@ CONFIG_DRM_DUMB_VGA_DAC=y
 CONFIG_DRM_I2C_ADV7511=y
 CONFIG_DRM_I2C_ADV7511_AUDIO=y
 CONFIG_FB_SH_MOBILE_LCDC=y
-CONFIG_FB_SH_MOBILE_MERAM=y
 # CONFIG_LCD_CLASS_DEVICE is not set
 # CONFIG_BACKLIGHT_GENERIC is not set
 CONFIG_BACKLIGHT_PWM=y