OMAPDSS: use platform_driver_probe for dsi/hdmi/rfbi/venc/dpi/sdi

Now that the core.c doesn't fail if output driver's init fails, we can
change the uses of platform_driver_register to platform_driver_probe.
This will allow us to use __init in the following patches.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 9e3ee87..b154d28 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -187,7 +187,6 @@
 }
 
 static struct platform_driver omap_sdi_driver = {
-	.probe		= omap_sdi_probe,
 	.remove         = omap_sdi_remove,
 	.driver         = {
 		.name   = "omapdss_sdi",
@@ -197,7 +196,7 @@
 
 int sdi_init_platform_driver(void)
 {
-	return platform_driver_register(&omap_sdi_driver);
+	return platform_driver_probe(&omap_sdi_driver, omap_sdi_probe);
 }
 
 void sdi_uninit_platform_driver(void)