Add OWNERS for BatteryStats related files

This file will be referenced by various OWNERS files across the repo

Test: N/A
Change-Id: I8839b4be73c04d697328855031f68bffc4232c75
diff --git a/BATTERY_STATS_OWNERS b/BATTERY_STATS_OWNERS
new file mode 100644
index 0000000..7728975
--- /dev/null
+++ b/BATTERY_STATS_OWNERS
@@ -0,0 +1,4 @@
+# OWNERS of BatteryStats related files
+bookatz@google.com
+dplotnikov@google.com
+mwachens@google.com