Add CtsInputRootTestCases to inputflinger postsubmit

Add newly created root CTS tests for input to postsubmit test. They
will be added to presubmit when SLO requirement is met in postsubmit.

Bug: 319611243
Test: presubmit
FLAG: TEST_ONLY
Change-Id: I0e338afb209168f09362c8ee2b31019ef6daab6e