Fix AppOps collection bug.

Confirmed by tests (will be submitted seraprately)
In situation when shell blames app for certain app_op, shell gets
PROXIED count increased while app gets PROXY count increased.

Bug: 143519689
Test: make statsd_testdrive && ./out/host/linux-x86/bin/statsd_testdrive 10060
Change-Id: I9459c6fd42e8d9b11a8069d185472964b8816a8c