dm: Rename DM_GET_DRIVER() to DM_DRIVER_GET()

In the spirit of using the same base name for all of these related macros,
rename this to have the operation at the end. This is not widely used so
the impact is fairly small.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/lg4573.c b/drivers/video/lg4573.c
index abf40bd..dd87fc4 100644
--- a/drivers/video/lg4573.c
+++ b/drivers/video/lg4573.c
@@ -219,7 +219,7 @@
 	int ret;
 
 	ret = uclass_get_device_by_driver(UCLASS_DISPLAY,
-					  DM_GET_DRIVER(lg4573_lcd), &dev);
+					  DM_DRIVER_GET(lg4573_lcd), &dev);
 	if (ret) {
 		printf("%s: Could not get lg4573 device\n", __func__);
 		return ret;