bcl: Add Mitigation Logger - Del zuma-sepolicy

Mitigation Logger logs battery related information for 1 second when it
is triggered by under voltage or over current interrupts.  Information
collected is to help debug system brownout.

Bug: 228383769
Test: Boot and Test
Change-Id: I83f1d8da286b53c0ae072db7ad1ce62900e5837d
Signed-off-by: George Lee <geolee@google.com>