iio: exynos_adc: Remove redundant of_match_ptr macro

exynos_adc is a DT only driver and exynos_adc_match table is always
compiled in. Hence remove the macro.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 4a8a9a3..9f3a8ef 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -440,7 +440,7 @@
 	.driver		= {
 		.name	= "exynos-adc",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(exynos_adc_match),
+		.of_match_table = exynos_adc_match,
 		.pm	= &exynos_adc_pm_ops,
 	},
 };