power: pm8921-charger: update userspace per update_time milliseconds

The userspace should be updated periodically to update it with the
charging progress.

Create a delayed_work and schedule it every update_time milliseconds
to notify the userspace that power supply changed. The userspace
is then supposed to read the power supply properties and know about
the charging progress.

CRs-Fixed: 305572
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
3 files changed