Fix statsd ASAN failure

If tagId is not found in kAllPullAtomInfo map, StatsPuller will read
outside of the object. Add a condition check to gracefully handle
unrecognised tagId and fix the ASAN failure.

Bug: 139037732
Test: boot aosp_x86-eng
Change-Id: Ic62b89866dbec82f05e6f8e6afca9b312f44a801
Merged-In: I5db561c4223efc4ef6b1441490d319cc6ec8afc7
Exempt-From-Owner-Approval: trivial change, owner OOO.