power: qpnp-fg-gen3: Use disable_irq_nosync for disabling interrupts

Delta battery SOC interrupt can fire during boot just after
registering the interrupts before disabling it through vote() on
delta_bsoc_irq_en_votable during driver probe. When this happens,
from the delta_bsoc interrupt handler, an attempt to disable the
interrupt can be made by fg_charge_full_update() if charge_done
is not set. This will in turn acquire the mutex lock of votable
while trying to do disable_irq() which needs synchronization.
Prevent this situation by using disable_irq_nosync() when
disabling the interrupts from votable callbacks.

Change-Id: I1b617c4afd39c544ce79f9396030b730c55445a7
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
Signed-off-by: Sahil Chandna <chandna@codeaurora.org>