change dlog control logic

change dlog control logic

and sync with latest version of private code.

we don't use Environment Variable not anymore.
so we read the configuration file.
for reduce file read operation delay.
copy that file to /tmp as init time by dlog.sh script.
It will be changed, when dlog apply to systemd service.

sync with latest version of private.
added secure dlog macro.
removed unused script for platform environment variable.
added systemd-journal features.

Change-Id: Ia844c90b7cabff66dfbd5d5eb89738b948b0d350