PPC: fix fcfid on disassembler

This CL corrects the selection and print of fcfid variations
(singe and double precision).

Change-Id: I438a76793ec5fdb814ea6bc46bd0a2b0c9b2acd2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3712063Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#81226}

src/diagnostics/ppc/disasm-ppc.cc

@@ -1335,10 +1335,18 @@ void Decoder::DecodeExt2(Instruction* instr) {
 void Decoder::DecodeExt3(Instruction* instr) {
   switch (EXT3 | (instr->BitField(10, 1))) {
     case FCFID: {
+      Format(instr, "fcfid'.  'Dt, 'Db");
+      break;
+    }
+    case FCFIDS: {
       Format(instr, "fcfids'. 'Dt, 'Db");
       break;
     }
     case FCFIDU: {
+      Format(instr, "fcfidu'. 'Dt, 'Db");
+      break;
+    }
+    case FCFIDUS: {
       Format(instr, "fcfidus'.'Dt, 'Db");
       break;
     }