Power save request should be sent on station interface. Virtual
interface which is connected should be preferred. This patch
resolves device not entering power save problem in certain
situations
Signed-off-by: NAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: NSiva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>