Linux 4.4.216

BugLink: https://bugs.launchpad.net/bugs/1868628Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

Makefile

 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 215
+SUBLEVEL = 216
 EXTRAVERSION =
 NAME = Blurry Fish Butt