[PATCH][Xenial SRU] Fix bluetooth firmare download error

[AceLan Kao]

BugLink: http://bugs.launchpad.net/bugs/1634380

Impact:
Can turn off the WiFi/BT by wireless hotkey, but the BT is still off
after press the hotkey again. WiFi didn't has this issue.
Can't turn on the BT in the system setting, need reboot the system.
 
Fix:
BT device has been still put in suspend mode by runtime pm
while downloading firmware, we need to wake the device up,
before we can do other actions. 

Tested:
Verified on Dell machines with DW1820B[0cf3:e007] combo card.
This commit also fixes some other similar bugs found on other machines.

Ethan Hsieh (1):
  Bluetooth: btusb: Fix atheros firmware download error

 drivers/bluetooth/btusb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.7.4