Related-to: NEO-7695
New debug keys added:
EnableBOChunking is now a mask
0 = no chunking (default).
1 = shared allocations only
2 = device allocations only
3 = shared and device allocations
MinimalAllocationSizeForChunking sets the minimum allocation
size to apply chunking. Default is 2MB.
Signed-off-by: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>