Staging: octeon-hcd: removed unwanted return from void

This is a patch to the octeon-hcd.c file that fixes
checkpatch.pl warning by removing return statement from
void functions.

Signed-off-by: Nitin Kuppelur <nitinkuppelur@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>