mfd: da9150: Drop of_match_ptr from of_device_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 is not relevant here).  This fixes
compile warning (!CONFIG_OF on x86_64):

  drivers/mfd/da9150-core.c:505:34: warning: ‘da9150_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/da9150-core.c

@@ -511,7 +511,7 @@ MODULE_DEVICE_TABLE(of, da9150_of_match);
 static struct i2c_driver da9150_driver = {
 	.driver	= {
 		.name	= "da9150",
-		.of_match_table = of_match_ptr(da9150_of_match),
+		.of_match_table = da9150_of_match,
 	},
 	.probe		= da9150_probe,
 	.remove		= da9150_remove,