Makes deep press for LPNH toggelable

By default when deep press is detected (https://developer.android.com/reference/android/view/MotionEvent#CLASSIFICATION_DEEP_PRESS)
during LPNH triggers the long press action immediately. This change makes this toggelable.

Flag is set to enabled by default, which leads to the default behavior.

Fix: 310952290
Test: Manual
Flag: LEGACY ENABLE_LPNH_DEEP_PRESS ENABLED
Change-Id: I970fed697979ee528e54b8be0139d842f3a64c43