Struct issues in SDAccel

[rachitnigam]

There seems to be some issue with passing an array to structs to OpenCL. SDAccel uses OpenCL 1.2 under the hood.

Here is an issue claiming that the structs might not have the same layout in both the host and the device.

Other issues recommend using __attribute(packed)__ on the struct being passed from host to device. Briefly tried using it when debugging bfs-bulk. Did not work.

Figure out which kinds of structs are allowed in SDAccel.