Add workaround for deepsleep on Samsung msm7x27

The WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID is not
being acknowledged properly on our chipset.

Thanks to gian21391.

(cherry picked from commit ac8f18cf9c95960c349060bf1918e8f988af746f)

Change-Id: Ib6fa2e05c9800ac8a2f7c22971c19fe8ce012f06
ath6kl: add board wlan_setup_power function

(cherry picked from commit 4098d5e84168e2291598fbeefd2bc3bf79bdfd0a)

Change-Id: I594acffdc3981a357b254352ec8bafbc173bb0b5
Fix build errors on Samsung 3.0 & 2.6.35 kernels

(cherry picked from commit 8d2dcf98ec86df40d83d716afa17c0a0645d8a11)

Change-Id: I2af309a789b8788a7d9721593f4d7815cae20283