power: qpnp-fg-gen3: fix an unbalanced irq disable for delta_bsoc irq

Currently, rerun_election() is called on delta_bsoc_irq_en
votable to disable delta_bsoc interrupt during probe. However, it
doesn't set the internal variable for votable to not allow a
similar vote again. When a vote is made later to disable the
interrupt again, it can end up in invoking the callback again.

This leads to an unbalanced interrupt disable warning. Fix it.

CRs-Fixed: 2058754
Change-Id: I30c35be5275b5b310cf9b17ea4660a3e2e89c59a
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>