Setup the wiphy regulatory parameters when first initializing the
Atheros regulatory module.  We can remove five exported symbols this
way and simplify the driver code for both ath5k and ath9k.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This change creates a new module, ath.ko, which includes code that can
be shared between ath5k, ath9k and ar9170. For now, extract most of the ath9k
regulatory code so it can also be used in ath5k.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>