Enable new touchpad stack for Sony DualSense gamepad

Now that b/246587538 is fixed, the touchpad experience on the DualSense
is pretty good. There are still some issues on the DualShock 4, so keep
that on the old stack for now.

Bug: 251196347
Test: connect DualSense gamepad (USB & Bluetooth), check experience is
      smooth
Test: atest inputflinger_tests
Change-Id: I54f822a72161b464d8b5b2cf981200190bb7e709