power: qpnp-fg: configure thermal coefficients based on battery type

Add support to read thermal coefficients from battery profile.
If thermal coefficient is present in FG DT node then it will always
takes precedence over the configuration present in battery profile.

CRs-Fixed: 853464
Change-Id: Iea876b9d4f7777028d0aed5a79ff3d5dada1f8b6
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>