ARM: shmobile: r8a7740: Make r8a7740_meram_workaround() __init

It's called from eva_init() only, which is __init

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/mach-shmobile/setup-r8a7740.c

@@ -765,7 +765,7 @@ static struct platform_device *r8a7740_late_devices[] __initdata = {
  *	"Media RAM (MERAM)" on r8a7740 documentation
  */
 #define MEBUFCNTR	0xFE950098
-void r8a7740_meram_workaround(void)
+void __init r8a7740_meram_workaround(void)
 {
 	void __iomem *reg;