ath9k_htc: Move LED/RFKILL code to htc_drv_gpio.c

And add the copyright/license header.

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

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

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

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