aco/gfx11: update form_hard_clauses

aco/gfx11: update form_hard_clauses

See https://reviews.llvm.org/D127391

fossil-db (gfx1100):
Totals from 116 (0.07% of 161689) affected shaders:
Instrs: 124719 -> 124664 (-0.04%); split: -0.06%, +0.02%
CodeSize: 731660 -> 731440 (-0.03%); split: -0.04%, +0.01%
Latency: 2771695 -> 2771671 (-0.00%); split: -0.00%, +0.00%
InvThroughput: 1050309 -> 1050312 (+0.00%)
VClause: 3731 -> 3779 (+1.29%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17710>