wlcore: add support for STA CSA with chan contexts
wlcore: add support for STA CSA with chan contexts

TI wl12xx/wl18xx cards support channel switch via a driver specific
switch_channel op while operating with channel contexts.

Signed-off-by: Arik Nemtsov <1a5d131848a166677cc209f94fa988cee9378c32@wizery.com>
Signed-off-by: Eliad Peller <fdf5551f20996bc0613832b4b54eb06eecaffd38@wizery.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs