bcl: Add Mitigation Logger - Makefile

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
Signed-off-by: George Lee <geolee@google.com>
Change-Id: Ie6fd5bc1a46891fc3c611af545e05253b263243f