pinctrl: sx150x: drop of_match_ptr for ID table

The driver will match mostly by DT table (even thought there is regular
ID table) so there is little benefit in of_match_ptr (this also allows
ACPI matching via PRP0001, even though it might not be relevant here).
This also fixes !CONFIG_OF error:

  drivers/pinctrl/pinctrl-sx150x.c:833:34: error: ‘sx150x_of_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230312132702.352832-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-sx150x.c

@@ -1250,7 +1250,7 @@ static int sx150x_probe(struct i2c_client *client)
 static struct i2c_driver sx150x_driver = {
 	.driver = {
 		.name = "sx150x-pinctrl",
-		.of_match_table = of_match_ptr(sx150x_of_match),
+		.of_match_table = sx150x_of_match,
 	},
 	.probe_new = sx150x_probe,
 	.id_table = sx150x_id,