Linux 4.4.40

BugLink: http://bugs.launchpad.net/bugs/1654602Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Makefile

 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 39
+SUBLEVEL = 40
 EXTRAVERSION =
 NAME = Blurry Fish Butt