assembler: Put struct opcode_desc back in brw_context.h

I originally moved struct opcode_desc from brw_context.h to brw_eu.h on
the mesa side, but that was before the realization we needed struct
brw_context if we wanted to not touch the code too much.

So put it back there now that the mesa patch has been dropped.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
3 files changed