rl(4) is broken in STABLE

[Eugene Grosbein]

Hi!

Revisions 1.38.2.17/1.38.2.18 of src/sys/pci/if_rl.c
(and corresponding 1.14.2.6 of src/sys/pci/if_rlreg.h) broke rl(4)
at least for D-Link DFE 530TX+ 10/100BaseTX.

I've sent PR an hour ago but still did not get its number.
Meantime I've rolled back these revisions, rebuilt kernel
and my NICs work again.

Eugene Grosbein