drm/omap: rename omapdrm device back

Now that creating the omapdrm device from the platform code has been
removed, we can rename the omapdrm device back to "omapdrm".
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/dss/core.c

@@ -77,7 +77,7 @@ static int __init omap_dss_init(void)
 			goto err_reg;
 	}
 
-	omap_drm_device = platform_device_register_simple("omapdrm_", 0, NULL, 0);
+	omap_drm_device = platform_device_register_simple("omapdrm", 0, NULL, 0);
 	if (IS_ERR(omap_drm_device)) {
 		r = PTR_ERR(omap_drm_device);
 		goto err_reg;

drivers/gpu/drm/omapdrm/omap_drv.c

@@ -768,7 +768,7 @@ static SIMPLE_DEV_PM_OPS(omapdrm_pm_ops, omap_drm_suspend, omap_drm_resume);
 
 static struct platform_driver pdev = {
 	.driver = {
-		.name = "omapdrm_",
+		.name = "omapdrm",
 		.pm = &omapdrm_pm_ops,
 	},
 	.probe = pdev_probe,