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These are for use in new intrinsics.  Bsf (Bit Scan Forward) is used in
{Long,Integer}NumberOfTrailingZeros and the rotates are used in
{Long,Integer}Rotate{Left,Right}.

Change-Id: Icb599d7e1eec4e4ea9e5b4f0b1654c7b8d4de678
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>