gpio/misc: Add MODULE_ALIAS entries for CS5535 functions

This adds MODULE_ALIAS entries to the various cs5535 subdevice modules; this
allows the modules to automatically be loaded when cs5535-mfd loads.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/gpio/cs5535-gpio.c b/drivers/gpio/cs5535-gpio.c
index 70967e2..f9813ef 100644
--- a/drivers/gpio/cs5535-gpio.c
+++ b/drivers/gpio/cs5535-gpio.c
@@ -399,3 +399,4 @@
 MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
 MODULE_DESCRIPTION("AMD CS5535/CS5536 GPIO driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);