Staging: et131x: Clean up the phy code, especially dup stuff

Fold in the TPAL stuff and remove the duplication
Clean up other stuff where we do un-needed work or have verbose implementations
Comment some of the functions as we go
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/et131x/et1310_phy.h

@@ -741,7 +741,7 @@ struct et131x_adapter;
 
 /* Prototypes for ET1310_phy.c */
 int et131x_xcvr_find(struct et131x_adapter *adapter);
-int et131x_setphy_normal(struct et131x_adapter *adapter);
+void et131x_setphy_normal(struct et131x_adapter *adapter);
 
 /* static inline function does not work because et131x_adapter is not always
  * defined