soc-camera: ov772x: Modify buswidth control

This patch removes "buswidth" struct member, and sets the default buswidth
to the natively supported 10 bit. You can select 8 bit buswidth by new flag.
This patch also modify ap325rxa/migor setup.c

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -431,7 +431,7 @@ static struct i2c_board_info migor_i2c_camera[] = {
 };
 
 static struct ov772x_camera_info ov7725_info = {
-	.buswidth	= SOCAM_DATAWIDTH_8,
+	.flags		= OV772X_FLAG_8BIT,
 };
 
 static struct soc_camera_link ov7725_link = {