Revert "klte-common: add PowerHAL extension for gpio-keys."

This reverts commit ecbb28387cf84311a3687ee93950f78e6f0305b7.
klte-common: change "ES705 Voice Wakeup Enable" to 1.

* There has been a small but illusive bug where the first call after a
reboot sometimes has no audio for the user or the caller for about 10 secs.
This corrects that issue.

Change-Id: I0c29011d763342b2a13c5358767a49149d0749df