ath9k_hw: small optimization

Assign the MCI BT state locally, rather than unnecessarily calling
ar9003_mci_state and updating it.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/ath/ath9k/ar9003_mci.c
Simple merge

diff --cc drivers/net/wireless/ath/ath9k/ar9003_mci.h
Simple merge

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