hlte-common: add keydisabler

Change-Id: Ia73270daf4f6d1569d94da85e67a3f2b8925e7c1
(cherry picked from commit 088627669cfc54b4c80d1ec5a4e112ca969de23b)
Revert "klte-common: disable input filtering."

This reverts commit 15b58f07812e0fbb51bb66766bf5c67d29ef58a0.

* Seems to cuase response issues opening apps

(cherry picked from commit c57970cfd5847dd51340290e6699287ef151da46)