platform/x86: intel-hid: Support 5 button array

platform/x86: intel-hid: Support 5 button array

New firmwares include a feature called 5 button array that supports
super key, volume up/down, rotation lock and power button. Support
for this feature is required to fix power button on some recent
systems.

This patch was tested on a Dell Latitude 7480.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Reviewed-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
BugLink: http://bugs.launchpad.net/bugs/1697116
(cherry picked from commit bd5762a0c1c9ae66bd0ece6959bbc5013ab95dcd)
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>