mfd: fsl-imx25: 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/fsl-imx25-tsadc.c:190:34: warning: ‘mx25_tsadc_ids’ 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/fsl-imx25-tsadc.c

@@ -196,7 +196,7 @@ MODULE_DEVICE_TABLE(of, mx25_tsadc_ids);
 static struct platform_driver mx25_tsadc_driver = {
 	.driver = {
 		.name = "mx25-tsadc",
-		.of_match_table = of_match_ptr(mx25_tsadc_ids),
+		.of_match_table = mx25_tsadc_ids,
 	},
 	.probe = mx25_tsadc_probe,
 	.remove = mx25_tsadc_remove,