Add AndroidTest.xml to incident_helper and incidentd

This change depends on fix of b/69802886:
https://android-review.googlesource.com/#/c/platform/build/+/555203/

Bug: 65754586
Test: atest incident_helper_test && atest incidentd_test
Change-Id: I64d793c8abe4381114e5b38fa12d085b1d808cd1