media: platform: marvell: drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).  This
also fixes !CONFIG_OF error:

  drivers/media/platform/marvell/mmp-driver.c:364:34: error: ‘mmpcam_of_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/marvell/mmp-driver.c

@@ -362,7 +362,7 @@ static struct platform_driver mmpcam_driver = {
 	.remove_new	= mmpcam_remove,
 	.driver = {
 		.name	= "mmp-camera",
-		.of_match_table = of_match_ptr(mmpcam_of_match),
+		.of_match_table = mmpcam_of_match,
 		.pm = &mmpcam_pm_ops,
 	}
 };