compat-drivers: remove devinit and devexit from alx driver

devinit and devexit were removed from kernel version 3.8 and using it
causes compile problems.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat-drivers: refresh patches

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>