Replace fixed package names now that they can filter correctly.

Previously all testapp packages names had to be android.ApkName. Now
they can be arbitrary. This CL sets the package names to something more
typical.

Bug: 188894962
Test: atest CtsDevicePolicyTestCases
Test: atest GtsDevicePolicyTestCases
Test: atest TestAppTest
Change-Id: I01309dcf4f0b99f225e05aa902a8124283d3b394
15 files changed