pinctrl: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

This is a squash commit of:
pinctrl: at91: Remove redundant of_match_ptr
pinctrl: exynos5440: Remove redundant of_match_ptr
pinctrl: imx35: Remove redundant of_match_ptr
pinctrl: imx51: Remove redundant of_match_ptr
pinctrl: imx53: Remove redundant of_match_ptr
pinctrl: imx6dl: Remove redundant of_match_ptr
pinctrl: imx6q: Remove redundant of_match_ptr
pinctrl: samsung: Remove redundant of_match_ptr
pinctrl: vf610: Remove redundant of_match_ptr
pinctrl: imx6sl: Remove redundant of_match_ptr
pinctrl: plgpio: Remove redundant of_match_ptr

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/spear/pinctrl-plgpio.c

@@ -735,7 +735,7 @@ static struct platform_driver plgpio_driver = {
 		.owner = THIS_MODULE,
 		.name = "spear-plgpio",
 		.pm = &plgpio_dev_pm_ops,
-		.of_match_table = of_match_ptr(plgpio_of_match),
+		.of_match_table = plgpio_of_match,
 	},
 };