power: smb5: add support for die/connector temp based mitigation

Add support to configure/enable hardware controlled mitigation
based on DIE and connector temperature. H/W controlled scheme
manipulates input current limit(ICL) of charger whenever die or
connector temperature crosses configured threshold.

Change-Id: Ib7655a8709960c79c554657a5d144c0ceccb73d3
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>