fix: work around triton SPV_INTEL_predicated_io on Intel XPU
triton 3.7.x enables has_predicated_io for non-LTS Intel GPU drivers and emits
the SPV_INTEL_predicated_io SPIR-V extension. Some level-zero loaders (e.g.
1.13.35563) reject that extension at kernel load time, aborting every triton
kernel launch with 'InvalidModule: ... unknown extension'. Since it is not a
catchable Python exception, the torch preprocess fallback never ran and the
whole benchmark died.
Add auto_round_kernel/_xpu_triton_compat.py which patches the intel triton
backend to force has_predicated_io off (standard predicated loads instead),
and apply it when the triton preprocess module loads. The triton-xpu preprocess
backend now works and is faster than torch (seq 32768/50% e2e: 327ms -> 206ms).
