This fixes a problem on the Intel Gen8 Graphics and is backport from
the upstream master of xf86-video-intel driver code
[YOCTO #8587]
(From OE-Core rev: d85f5d4f2fe6f71c3e9e4de4dcda73ce54bc2d39)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>