ath9k: add 0x6C regulatory domain support for new modules

ath9k: add 0x6C regulatory domain support for new modules

ath: fix 0x6C for beaconing/passive scan flags based on country IE

The 0x6C regulatory domain is just like the 0x6A regulatory
domain but differs in that 0x6C will allow adhoc and active
scan on its channels only if we are associated to an AP
with a country IE that allows those channels. The
ath_reg_apply_beaconing_flags() does just this -- we respect
the manufacturer's intent on only enabling beaconing modes
of operation if and only if blessed by the country IE.

Cc: David Quan <david.quan@atheros.com>;
Cc: Senthil Balasubramanian <senthilkumar@atheros.com>;
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>;
Signed-off-by: John W. Linville <linville@tuxdriver.com>;

ath: Add a missing world regulatory domain 0x6C

Some customers use 0x6C world regulatory domain and this patch
adds the support.

Cc: Luis R. Rodriguez <lrodriguez@atheros.com>;
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>;
Signed-off-by: John W. Linville <linville@tuxdriver.com>;

BUG=chromium-os-partner:3439
TEST=manual:boot on mario with 9382 and mario with 9280; run matfunc w/ no regressions

[Paul Stewart, 2011-04-22 19:53:48]

LGTM