sh: enable deferred io LCDC on Migo-R

Enable LCDC deferred io on Migo-R using 1s delay.

As with other deferred io frame buffers user space code should
use fsync() on the frame buffer device to trigger an update.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/mach-migor/setup.c

@@ -262,6 +262,8 @@ static struct sh_mobile_lcdc_info sh_mobile_lcdc_info = {
 		.sys_bus_cfg = {
 			.ldmt2r = 0x06000a09,
 			.ldmt3r = 0x180e3418,
+			/* set 1s delay to encourage fsync() */
+			.deferred_io_msec = 1000,
 		},
 	}
 #endif