qpnp-fg-gen3: Move getting battery id and profile to profile_load_work

Workaround to re-enable BMD while getting battery id was required
when driver is probing. This was done to mitigate driver probe
failures because of failed SRAM access. Getting battery_id from
RR_ADC driver itself takes ~200ms and re-enabling BMD takes 200ms
which increases driver probe time.

With the recent changes in reading batt_id channel from RR_ADC
driver, re-enabling BMD is not required anymore when the driver
probes. Hence move getting battery_id and battery profile to
profile_load_work. This way, there won't be any delay when the
driver probes.

CRs-Fixed: 2062261
Change-Id: Ifeb361e0f82fca65f9570fd1f425c7360445d01f
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>