WEXT: Add "driver getpower" support

Change-Id: I1117f80f628ce99e5b14cf271eb2a300e8f07801
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Merge (-sours) commit 'cab08b8752252e853753bb182fba9c63aa188de6' into HEAD

* commit 'cab08b8752252e853753bb182fba9c63aa188de6':
  WEXT: Add "driver getpower" support
Added adhoc support, thanks to daveba

http://forum.xda-developers.com/showthread.php?p=7711198#post7711198
Update to use thalamus kernel
Update to use binary.mk 4.3_r2.1
Use regular module to build wpa_supplicant.conf

Now PRODUCT_COPY_FILES is not allowed in module makefiles.
Bug: 3003508

Change-Id: Id2d163926365c3bce541990dc4d77eebc4e20975
Fix build.

Change-Id: Ib4e764c5d31d776421ab0056056e5c2747c4be0d