[turbofan] Only use --no-turbo-rewrite-far-jumps when applicable

Fixes the use of v8_enable_fast_mksnapshot on platforms that
aren't ia32 or x64. This was introduced by
https://chromium-review.googlesource.com/c/v8/v8/+/3863281

Change-Id: I0d18c2d16dae4937baa40ee336d8c246a8b77889
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3867408Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: George Wort <george.wort@arm.com>
Cr-Commit-Position: refs/heads/main@{#82945}

BUILD.gn

@@ -2280,10 +2280,11 @@ template("run_mksnapshot") {
     }
 
     if (v8_enable_fast_mksnapshot) {
-      args += [
-        "--no-turbo-rewrite-far-jumps",
-        "--no-turbo-verify-allocation",
-      ]
+      args += [ "--no-turbo-verify-allocation" ]
+
+      if (v8_current_cpu == "x86" || v8_current_cpu == "x64") {
+        args += [ "--no-turbo-rewrite-far-jumps" ]
+      }
 
       if (v8_enable_debugging_features && v8_enable_slow_dchecks) {
         # mksnapshot only accepts this flag if ENABLE_SLOW_DCHECKS is defined.