[ARM] Allow usubo and uaddo to happen for any legal type

Author: AZero13

llvm/lib/Target/ARM/ARMISelLowering.h

@@ -641,8 +641,9 @@ class VectorType;
 
     bool shouldFormOverflowOp(unsigned Opcode, EVT VT,
                               bool MathUsed) const override {
-      // Using overflow ops for overflow checks only should beneficial on ARM.
-      return TargetLowering::shouldFormOverflowOp(Opcode, VT, true);
+      if (VT.isVector())
+        return false;
+      return !isOperationExpand(Opcode, VT);
     }
 
     bool shouldReassociateReduction(unsigned Opc, EVT VT) const override {