power: qpnp-qg: Do not round-up/down battery SOC in BASS

The rounding of battery SOC causes the monotonic SOC to
drop higher than expected (ratio of the drop of
monotonic to battery SOC is higher) leading to a bad
UX.

Change-Id: I7da1c3cff4fb9470a3904407f180463c26315e61
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>