driver core: platform: Make use of the helper macro SET_RUNTIME_PM_OPS()

Use the helper macro SET_RUNTIME_PM_OPS() instead of the verbose
operators ".runtime_suspend/.runtime_resume", because the
SET_RUNTIME_PM_OPS() is a nice helper macro that could be brought
in to make code a little clearer, a little more concise.
Signed-off-by: NCai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210828090219.1177-1-caihuoqing@baidu.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/platform.c

@@ -1466,8 +1466,7 @@ int platform_dma_configure(struct device *dev)
 }
 
 static const struct dev_pm_ops platform_dev_pm_ops = {
-	.runtime_suspend = pm_generic_runtime_suspend,
-	.runtime_resume = pm_generic_runtime_resume,
+	SET_RUNTIME_PM_OPS(pm_generic_runtime_suspend, pm_generic_runtime_resume, NULL)
 	USE_PLATFORM_PM_SLEEP_OPS
 };