extcon: add unique ac adaptor extcon cable id

extcon: add unique ac adaptor extcon cable id

Add unique ac adaptor extcon cable id, this cable
id used to detect and report always on ac power supply
status to framework layer.

Bug 200453496

Change-Id: Ibeb6b25e0db2aed35bbed7389245fb07125378af
Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1922472
(cherry picked from commit 958ce629d61bb2207cb8505b5cf9f5a254153938)
Reviewed-on: https://git-master.nvidia.com/r/1928117
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Xianhui Wang <xianhuiw@nvidia.com>
Tested-by: Xianhui Wang <xianhuiw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Siddardha Naraharisetti <siddardhan@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>