meta-quanta: gbs: NVMe SSD power control for GBS

add NVMe SSD power enable/disable DBus for sensors
and allow host to set SSD power

Note:
Need to set gpio-line-names in kernel dts for SSD
power enable/disable

(From meta-quanta rev: 41dd1473c5fc9eef12366ad13c36461010860f5f)

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: Iab1fefc7c51176cf62b7d238e2de3837148eaebd
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>