ath9k_hw: Use CONFIG_ATH9K_BTCOEX_SUPPORT

Make use of CONFIG_ATH9K_BTCOEX_SUPPORT in ath9k_hw
to provide a clean way of compilation without BTCOEX
support.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/ath/ath9k/Makefile
Simple merge

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

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

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

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