intel: Add support for float16 as cooperative matrix accumulator

The number of passing tests in ./deqp-vk -n '*cooperative_matrix.khr*'
increases

- on PTL from 787 -> 914
- on RPL from 799 -> 926

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13304
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35616>
1 file changed