qcacld-3.0: Add Driver Synchronization Core (vdev)

The Driver Synchronization Core (DSC) is a set of synchronization
primitives for use by the driver's orchestration layer. It provides APIs
for ensuring safe state transitions (including bring up and tear down)
of major driver objects: a single driver, associated psocs, and their
associated vdevs.

APIs are divided into two categories: mutual exclusion of conflicting
transitions, and operation tracking, blocking, and waiting capabilities.

For part 4, add the vdev-level implementation.

Change-Id: I3f5ef0f7abf24a45d757d286d450ef086640c56a
CRs-Fixed: 2290260
1 file changed