Revert "Input: mousedev: use DYNAMIC_MINOR for psaux"

This reverts commit 82e0dce0b3099358ba70f5d4f44c4f2ce8bb10e5.

Change-Id: I7e2b1ca021e739ebb7c56145970a772207c80809
char: misc: Increase number of dynamic minors available for HTC devices

* HTC devices require more dynamic minors than the default 64. Increase
  this limit to 128 to prevent any misc device registration failures

Change-Id: Ifd641bc33deafda108ccdcff8b9a94fd0038983e