Add logging for b/280105659

Logs values from NPVC.endMotionEvent and changes to the value
of NPVC.mPanelClosedOnDown

Bug: 280105659
Test: manually verified log messages
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:1729c112eaf1b2b8b7051c558d2d47db6c5dfcc7)
Merged-In: If8ded578580eceaf1145515915968d58811c0941
Change-Id: If8ded578580eceaf1145515915968d58811c0941