i2c: mt65xx: 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).

  drivers/i2c/busses/i2c-mt65xx.c:514:34: error: ‘mtk_i2c_of_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-mt65xx.c

@@ -1546,7 +1546,7 @@ static struct platform_driver mtk_i2c_driver = {
 	.driver = {
 		.name = I2C_DRV_NAME,
 		.pm = &mtk_i2c_pm,
-		.of_match_table = of_match_ptr(mtk_i2c_of_match),
+		.of_match_table = mtk_i2c_of_match,
 	},
 };