Check if container annotation com.intel.fpga.mode is set to
"intel.com/fpga-region". This annotation is set by device plugin.
So, the check should help to filter out unwanted workflow that
device plugin is not aware of.
The hook gets FPGA_REGION and FPGA_BITSTREAM environment variables
defined in a pod spec, finds bitstream file, verifies it and programs
FPGA device with it using fpga-configure tool from OPAE.
