Battery Mitigation: Use Brownout Reason - sepolicy

Brownout Reason replaces startup_bugreport_requested.  Battery
Mitigation needs to be updated.

Bug: 237287659
Test: Ensure lastmeal.txt is properly generated.
Merged-In: Ia03da290f5cb90ebbc7616d46e90064e346a402c
Change-Id: Ic123d704e37aa6d1dcd7377c291b537069ede829
Signed-off-by: George Lee <geolee@google.com>
1 file changed