[Flang] Handle the newly-added "Reserved" FramePointerKind for 1a52392

Author: hokein

clang/lib/Driver/ToolChains/Flang.cpp

@@ -802,6 +802,9 @@ void Flang::ConstructJob(Compilation &C, const JobAction &JA,
   case CodeGenOptions::FramePointerKind::None:
     FPKeepKindStr = "-mframe-pointer=none";
     break;
+   case CodeGenOptions::FramePointerKind::Reserved:
+    FPKeepKindStr = "-mframe-pointer=reserved";
+    break;
   case CodeGenOptions::FramePointerKind::NonLeaf:
     FPKeepKindStr = "-mframe-pointer=non-leaf";
     break;