Re-instate the EVT parameter to getScalarShiftAmountTy() for OOT user

A documentation for this function would be nice by the way.

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241807
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
index 55beb12..6bf5e77 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -423,7 +423,7 @@
     /// DAG node.
     const char *getTargetNodeName(unsigned Opcode) const override;
 
-    MVT getScalarShiftAmountTy(const DataLayout &) const override {
+    MVT getScalarShiftAmountTy(const DataLayout &, EVT) const override {
       return MVT::i32;
     }