[media] soc_camera: Don't use module names to load I2C modules

With the v4l2_i2c_new_subdev* functions now supporting loading modules
based on modaliases, remove the module names hardcoded in platform data
and pass a NULL module name to those functions.

All corresponding I2C modules have been checked, and all of them include
a module aliases table with names corresponding to what the soc_camera
platform data uses.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

arch/sh/boards/mach-ap325rxa/setup.c

@@ -481,7 +481,6 @@ static struct soc_camera_link ov7725_link = {
 	.power		= ov7725_power,
 	.board_info	= &ap325rxa_i2c_camera[0],
 	.i2c_adapter_id	= 0,
-	.module_name	= "ov772x",
 	.priv		= &ov7725_info,
 };