d2lte: Clean up Samsung device inheritance

* Separate apexqtmo and expressatt from d2lte
* Move common msm8960 bits to msm8960-common
* Do not dex to /cache
* Split proprietary lib handling between msm8960-common and device trees

Change-Id: Ibb82435955587e7016c28cf1272a43f92ed3fbe7

Conflicts:
	cm.dependencies
	overlay/frameworks/base/core/res/res/values/pa_config.xml
Fix typo "\" after libnetcmdiface...

Not sure if this file does anything, but now its actually included
in the build.

Change-Id: I0a8d381ea205d6a853a2f7d9ba311f65e0870cc5