drm/i915: Use hweight8() for 8bit masks
Use hweight8() instead of hweight32() for 8bit masks. Doesn't actually matter for us since the arch code will go for hweight32() anyway, but maybe we stil want to do this for documentation purposes? Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190821173033.24123-5-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>
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