dlx: Re-add digital dock routes for LPA and tunnel

* Change got stomped when updating to 4.4
* For supporting music playback over USB.

Conflicts:
	configs/audio_policy.conf

Change-Id: I00835e8fce001ca6e335e30bdb049894ddc76c9d
dlx: post_boot: Set minimum cpufreq frequency

Also set permissions on cpu0's min/max_freq.

A couple of users have commented that sometimes the minimum
frequency is set to the maximum frequency after boot so force
the minimum frequency.

Change-Id: I05c22537ba4c4495f808f33bf49b3e6a79ddff56
Merge "dlx: post_boot: Set minimum cpufreq frequency" into cm-11.0
Merge branch 'cm-11.0' into martincz