Change PowerPolicyHostTest to support SilentMode change

- Two dump logs are added to SilentModeHandler, which should be ignored
  in CTS

Bug: 256191889
Test: atest android.car.cts.PowerPolicyHostTest
Change-Id: I731d0a0030f92979da356498b1a67a6d237e3495
Merged-In: I731d0a0030f92979da356498b1a67a6d237e3495
(cherry picked from commit c4036ac97c3b1072c28dfbbde8bc32aaba521622)
1 file changed