Add CtsAppSecurityHostTestCases to com.android.server.pm pre/post-submit

The entire suite takes a long time, so it was added to post-submit.

Only PrivilegedUpdateTest was added to presubmit since it tests critical
functionality for several system apps to function.

Bug: 150596321

Test: none, TEST_MAPPING change

Change-Id: I69f84aaca5e0cc1cda90bf2af8c6125457a384aa