Show a warning about mismatching test / APK certs

Bug: 220198493
Test: Treehugger
Test: atest CtsAlarmManagerTestCases # arbitrary CTS to make sure this code path is exercised
Change-Id: I65b34b3344559b45ff5ec791ea32e99dc4191bd1
Merged-in: Iebbe1c8749ef43ac310179698a048a93be47e24b
1 file changed