Disable freezer during AM provider/service dump

This change disables the freezer during ActiveServices.dumpService() and
ProviderMap.dumpProvider() in order to avoid 'dumpsys activity
<service|provider>' from timing out during bug reports.

Test: Using health/bugreport/capturebugreport, verify that the 'dumpsys
      activity' sections no longer time out at 60 seconds.
Bug: 276451949
Change-Id: I22c5a83e545cfaaab9bfb6f9cae99146c3c51d8c