net: sungem_phy: fix code indentation

Remove extra space in front of the return statement.

Fixes: eb5b5b2f

 ("sungem_phy: support bcm5461 phy, autoneg.")
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>