[llvm-objdump] Dump PT_GNU_RELRO as part of -p.

PR: 31641
llvm-svn: 292169
diff --git a/llvm/tools/llvm-objdump/ELFDump.cpp b/llvm/tools/llvm-objdump/ELFDump.cpp
index 6434fb6..a613f21 100644
--- a/llvm/tools/llvm-objdump/ELFDump.cpp
+++ b/llvm/tools/llvm-objdump/ELFDump.cpp
@@ -36,6 +36,9 @@
     case ELF::PT_GNU_EH_FRAME:
       outs() << "EH_FRAME ";
       break;
+    case ELF::PT_GNU_RELRO:
+      outs() << "   RELRO ";
+      break;
     case ELF::PT_GNU_STACK:
       outs() << "   STACK ";
       break;