Notifying the device of the hosts intention to power it off, gives the device the ability to better prepare itself. (cherry picked from commit f495d1b0d837af16a9e9881dbbcd7908abf88b33) Change-Id: I43a6c576ea48508d60723f1002fc0fb26e9eafe4 Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> (cherry picked from commit 916072e4cb9373c054bc5a91ff289ac769958993)