proprietary-files: Move netmgr to family trees

Change-Id: I9eead2a7f9ff024057c82f13654067617bca93da
device-proprietary-files: All radio libs are common on msm8960dt

Change-Id: I92480c955d3ea2eca50637bb731857398d847fdf
Overlay: update tethering iface names

Change-Id: Icb0e8c9d0ceb4101f2cf8e092f3aa2b2299d7cf0
Merge branch 'cm-10.2' into martincz