celox: Clean up Samsung device inheritance

* Move common items to msm8660-common
* Move common items from device to celox-common
* Use nested cm.dependencies
* Move common familysystem properties to celox-common
* Don't attempt to run modem_links multiple times
* Move common overlay options to qcom-common
* Remove duplicate rild service definition
* Don't set unused time service property
* Don't attempt to run mdm_links multiple times

Change-Id: Ic11a950a81e1ac9a3adabd4430e83571315381a4