bcl: Add Mitigation Logger

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: I24e5075b12a9bb3f16241de268254bde38c133d0
diff --git a/battery_mitigation/bcl.mk b/battery_mitigation/bcl.mk
new file mode 100644
index 0000000..09bb5fc
--- /dev/null
+++ b/battery_mitigation/bcl.mk
@@ -0,0 +1,4 @@
+PRODUCT_PACKAGES += battery_mitigation
+
+BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/battery_mitigation/sepolicy
+PRODUCT_SOONG_NAMESPACES += device/google/gs-common/battery_mitigation