staging: octeon: Removed unnecessary else expression.

This patch fixes "else is not generally useful after a break or return"
checkpatch.pl warning ethernet-util.h

Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>