[sparkplug] Don't disable W^X on osx+arm64

Bug: v8:11420
Change-Id: I1289e2bb290ab80b761e2cdc3d85dff3621b4d0a
Fixed: v8:11465
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704151
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72841}

src/flags/flag-definitions.h

@@ -586,7 +586,10 @@ DEFINE_BOOL(sparkplug, false, "enable experimental Sparkplug baseline compiler")
 DEFINE_STRING(sparkplug_filter, "*", "filter for Sparkplug baseline compiler")
 DEFINE_BOOL(always_sparkplug, false, "directly tier up to Sparkplug code")
 DEFINE_BOOL(trace_baseline, false, "trace baseline compilation")
+#if !defined(V8_OS_MACOSX) || !defined(V8_HOST_ARCH_ARM64)
+// Don't disable --write-protect-code-memory on Apple Silicon.
 DEFINE_NEG_IMPLICATION(sparkplug, write_protect_code_memory)
+#endif
 DEFINE_IMPLICATION(always_sparkplug, sparkplug)
 
 // Flags for concurrent recompilation.