dd the option, -link-opt-hints to llvm-objdump used with -macho to print the
Mach-O AArch64 linker optimization hints for ADRP code optimization.

llvm-svn: 227246
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index 1204a97..4935f98 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -905,7 +905,8 @@
       && !(UniversalHeaders && MachOOpt)
       && !(ArchiveHeaders && MachOOpt)
       && !(IndirectSymbols && MachOOpt)
-      && !(DataInCode && MachOOpt)) {
+      && !(DataInCode && MachOOpt)
+      && !(LinkOptHints && MachOOpt)) {
     cl::PrintHelpMessage();
     return 2;
   }