ath9k: move setup_ht_cap to common-init

and rename it to ath9k_cmn_setup_ht_cap

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/ath/ath9k/common-init.c
Simple merge

diff --cc drivers/net/wireless/ath/ath9k/common-init.h
Simple merge

diff --cc drivers/net/wireless/ath/ath9k/init.c
Simple merge