ANDROID: GKI: power_supply: add CHIP_VERSION property

Add 'POWER_SUPPLY_PROP_CHIP_VERSION' property to expose
chip version to user-space.

Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
(cherry picked from commit 885bab7a)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 150789066
Change-Id: Ief43130c0c206c15f95a4432ad012383a28f750e