msm8930-common: Clean up Samsung device inheritance

* Move postrecoveryboot.sh to qcom-common
* Sort flags, update based on qcom-common flag changes
* Move building of media libs to msm8930-common
* Move QCOM_BSP to platform repos
* Move common 8930 stuff out of serrano-common to here
* Move 8930 thermald configs to msm8930-common
* Move common overlay options to qcom-common

Change-Id: Ic3b050138d4b0207a07c53f40fa7b08b1c869f05
msm8930: Add loganreltexx (Ace 3) to build barrier

Change-Id: I45e5c1e6f7a6e5dd394863b08184faf8e2c7301d
Revert "Revert "msm8930: Disable hostNSOffload feature""

 * Greatly reduces the amount of mmc1_detect wakelocks

This reverts commit ad4315e5171fe54175a110555fb8458e83407ac2.

Change-Id: I503012916fb36d7987a8ed6cdc926efd44dbadc8