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

Conflicts:
	Android.mk
	BoardConfig.mk
	DeviceSettings/res/values/config.xml
	apexq-common/firmware/WCNSS_qcom_cfg.ini
	cm.dependencies
	device.mk
	overlay/frameworks/base/core/res/res/values/dimens.xml
	proprietary-files.txt
	releasetools.py
	rootdir/etc/fstab.qcom
	rootdir/etc/init.qcom.rc

Change-Id: Ibb82435955587e7016c28cf1272a43f92ed3fbe7