- Use proper CARDBUS_* macro in if_rl_cardbus.c
- Use product ID read from PCI configuration space rather than from EEPROM
in if_rl_pci.c.
Patch sent from Masanori Kanaoka <kanaoka@ann.hi-ho.ne.jp> and
some cosmetic changes by me.
- Call bus_dmamap_sync(9) as appropriate.
- Leave only register declarations in rtl81x9reg.h and
split other stuff into rtl81x9var.h.
bus_dma(9) code mostly taken from thorpej's if_rtp.c.