PPC: [Interpreter] Remove register file register and replace with LoadParentFramePointer.

src/ppc/interface-descriptors-ppc.cc

Index: src/ppc/interface-descriptors-ppc.cc
diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index 95e1a726bee6984b1d030c952dce2728b6c4d7ee..3a9d6c6fd0914f219103795065d12f9884afe0e4 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -373,9 +373,8 @@ void ApiCallbackDescriptorBase::InitializePlatformSpecific(
 void InterpreterDispatchDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
-      kInterpreterAccumulatorRegister, kInterpreterRegisterFileRegister,
-      kInterpreterBytecodeOffsetRegister, kInterpreterBytecodeArrayRegister,
-      kInterpreterDispatchTableRegister};
+  kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
+  kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }