nir: Fix a misspelling

Fixes: cb95065dd122a "nir: Add lowering from regular ALU conversions..."
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6975>
2 files changed