PPC: add lhbrx to the dissembler

Change-Id: Ie61638fbc61b5a84dc9ba396e4df7193a2ebd6a7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3291547Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77978}

src/diagnostics/ppc/disasm-ppc.cc

@@ -1150,6 +1150,10 @@ void Decoder::DecodeExt2(Instruction* instr) {
       Format(instr, "ldbrx   'rt, 'ra, 'rb");
       return;
     }
+    case LHBRX: {
+      Format(instr, "lhbrx   'rt, 'ra, 'rb");
+      return;
+    }
     case LWBRX: {
       Format(instr, "lwbrx   'rt, 'ra, 'rb");
       return;