Silence a bunch of implicit fallthrough warnings

llvm-svn: 321114
diff --git a/llvm/lib/Object/ELF.cpp b/llvm/lib/Object/ELF.cpp
index c72a125..5906dc5 100644
--- a/llvm/lib/Object/ELF.cpp
+++ b/llvm/lib/Object/ELF.cpp
@@ -138,6 +138,7 @@
     default:
       break;
     }
+    break;
   case ELF::EM_BPF:
     switch (Type) {
 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"