fix: silence false warning in fmha_fwd_v3 when use_asm_v3 is disabled#2744

valarLip merged 1 commit intomainROCm/aiter:mainfrom

fix/silence-fmha-fwd-v3-false-warningROCm/aiter:fix/silence-fmha-fwd-v3-false-warningCopy head branch name to clipboard