Since PC Sampling not upstream yet, so use 1.16 for
contiguous VRAM allocation, and 1,17 for pc sampling.
Change-Id: Ib5d22e8f386ce7fe3f7111485b9632b61227e539
Signed-off-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Chris Freehill <cfreehil@amd.com>