- Do not read and write RX configuration register multiple times. - Always program RX configuration register from scratch instead of doing read/modify/write. - Rename re_setmulti() to re_set_rxmode() to be reflect reality. - Simplify hash filter logic a little while I am here.
- Do not read and write RX configuration register multiple times.
- Always program RX configuration register from scratch instead of
doing read/modify/write.
- Rename re_setmulti() to re_set_rxmode() to be reflect reality.
- Simplify hash filter logic a little while I am here.

Reviewed by:	yongari (early version)

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