[AMDGPU] fixes mistake in llvm#82018 (llvm#82223)

fixes llvm#81766 llvm#82018

Author: nickleus27

llvm/lib/Target/AMDGPU/SIISelLowering.cpp

@@ -6306,7 +6306,7 @@ SDValue SITargetLowering::lowerFMINNUM_FMAXNUM(SDValue Op,
     return expandFMINNUM_FMAXNUM(Op.getNode(), DAG);
 
   if (VT == MVT::v4f16 || VT == MVT::v8f16 || VT == MVT::v16f16 ||
-      VT == MVT::v32f16)
+      VT == MVT::v16bf16)
     return splitBinaryVectorOp(Op, DAG);
   return Op;
 }