Update OWNERS file.

Adding varunshah@ and jji@ for PowerExemptionManager.

Bug: n/a
Change-Id: I72ef25f07c5ac5bbf2e6445a78348091e3f6d383
Test: n/a
diff --git a/apex/jobscheduler/OWNERS b/apex/jobscheduler/OWNERS
index c77ea33..58434f1 100644
--- a/apex/jobscheduler/OWNERS
+++ b/apex/jobscheduler/OWNERS
@@ -1,7 +1,9 @@
 ctate@android.com
 ctate@google.com
 dplotnikov@google.com
+jji@google.com
 kwekua@google.com
 omakoto@google.com
 suprabh@google.com
+varunshah@google.com
 yamasani@google.com