Adding missing long-press haptics to the lockscreen.

Sometime along the way, we lost the haptic feedback on long-press. This
has been identified in public reviews of the current Android 16 beta.

Test: added Unit test
Test: manual. Verified long-press haptics play when long-pressing the
  lock screen.
Flag: com.android.systemui.msdl_feedback
Bug: 419557249
Change-Id: I05a70d03526061ef306e72fee755e1042c4c0733