- createGraphicsAllocationFromSharedHandle was not threadsafe,
instead of reusing BufferObject for a single handle when
multiple threads were creating memory objects from a single VASurface,
new BO could be created and placed in container with BOs for reuse.
This was leading to errors in ioctl calls.
- add lock for following set of operations:
1. find BufferObject with a given handle in container
2. create shared BO when not found
3. add shared BO to container
prevents creating multiple BOs for a single handle
- replace recursive mutex with regular mutex as mutex shouldn't
be locked recursively
Change-Id: I0937e2abf3bf1c672c6d77422d46e441f7216a68
Hoppe, Mateusz