Merge 3.18.44 into android-3.18

Changes in 3.18.44:
	mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
	x86/cpu: Fix SMAP check in PVOPS environments
	xhci: fix usb2 resume timing and races.
	Linux 3.18.44

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>