i2c: Fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable I2C platform drivers, to allow module auto loading.

[ db: add some more drivers ]

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 7813127..22f6d5c 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -263,6 +263,9 @@
 }
 
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:i2c-powermac");
+
 static struct platform_driver i2c_powermac_driver = {
 	.probe = i2c_powermac_probe,
 	.remove = __devexit_p(i2c_powermac_remove),