PM / devfreq: exyos-bus: drop of_match_ptr for 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 might not be relevant here).

  drivers/devfreq/exynos-bus.c:504:34: error: ‘exynos_bus_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

Author: krzk

drivers/devfreq/exynos-bus.c

@@ -513,7 +513,7 @@ static struct platform_driver exynos_bus_platdrv = {
 	.driver = {
 		.name	= "exynos-bus",
 		.pm	= &exynos_bus_pm,
-		.of_match_table = of_match_ptr(exynos_bus_of_match),
+		.of_match_table = exynos_bus_of_match,
 	},
 };
 module_platform_driver(exynos_bus_platdrv);