ANDROID: GKI: power_supply: Add "THERM_ICL_LIMIT" property

Add "THERM_ICL_LIMIT" property to allow userspace
thermal throttling algorithm to control input current
limit of charger.

Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
(cherry picked from commit d859ce8eb9a40f7b371a657428245d833a756610)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 150789066
Change-Id: Ib527712b3dc5cde3555813c26f1a4b3a10b23cc1