[FIX/FPGA] Add driver-assisted memcpy for workaround solution

[FIX/FPGA] Add driver-assisted memcpy for workaround solution

This patch adds driver-assisted memcpy for workaround solution.

In the current FPGA env, memcpy() between FPGAs makes bit-flip
for a certain memory regions. This workaround codes can avoid
this issue by driver-assisted codes.

Signed-off-by: Dongju Chae <dongju.chae@samsung.com>