power: qpnp-bms: remove misuse of bool

Bools should only hold true or false values. Change a few uses of
the bool datatype to int to avoid this violation.

Change-Id: Ie76a86363ba427f1c261a9308d9ec1142d780d5b
Signed-off-by: Xiaozhe Shi <xiaozhes@codeaurora.org>