Added application and driver to serve as the starting point for RDMA
unit test uility.
v2: Added initial mmap support
v3: Fixed logic to find correct ioctl handler
v4: Fixed logic in mmap to find correct pages table
Change-Id: Iaf97c0eb2acef2160d542c71afed58cf400414f7
Signed-off-by: Serguei Sagalovitch <Serguei.Sagalovitch@amd.com>