qpnp-fg-gen3: qnovo ESR/IADC workarounds

When FG IADC measurement period coincides with qnovo discharge pulses
it reads incorrect IADC values. That causes issues with SOC accuracy
and capacity learning amongst others.

The fix to IADC inaccuracy is to set a bit in the FG
peripheral while Qnovo is active.

A side effect of IADC inaccuracy fix is that the ESR
measurement goes haywire. To overcome that, disable ESR when
Qnovo is active and force an esr measurement when its between pulses.

Realize this by disabling ESR and enabling the bit when
Qnovo becomes active. The qnovo driver will set CHARGE_QNOVO_ENABLE
property on the bms psy when its active. Also provide code to
force an ESR measurement via a write to RESISTANCE property in
bms psy.

Change-Id: I7160ad6288362c17d28d67b38ec09332d9a6cbd2
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>