dlx: Move post-boot functionality into init

Change-Id: Id642accbcb3f48a4f673e0cdbbc3b1e22af61773
dlx: fix performance profiles

If cores are not online when setting freqs or governors, the
settings will not work because the files in /sys/... do not
exit when offline.

Change-Id: I26ac94f9d625e08d3285d159a07070eb8c7377db