This changes compilation of subgroup test kernels so that a separate
compilation is no longer performed for each divergence mask value.
The divergence mask is now passed as a kernel argument.
This also fixes all subgroup_functions_non_uniform_arithmetic testing
and the sub_group_elect and sub_group_any/all_equal subtests of the
subgroup_functions_non_uniform_vote test to use the correct order of
vector components for GPUs with a subgroup size greater than 64.
The conversion of divergence mask bitsets to uint4 vectors has been
corrected to match code comments in WorkGroupParams::load_masks()
in test_conformance/subgroups/subhelpers.h.
Signed-off-by: Stuart Brady <stuart.brady@arm.com>
656886030b