ppc64: [baseline] enable sparkplug on ppc64

Change-Id: Id10cfdb8f3a380eb1cd39be569e152b3ebe41b44
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735166Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#81528}

src/flags/flag-definitions.h

@@ -178,7 +178,7 @@
 #define ENABLE_CONTROL_FLOW_INTEGRITY_BOOL false
 #endif
 
-#if V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64 || \
+#if (V8_TARGET_ARCH_PPC64 && COMPRESS_POINTERS_BOOL) || \
     (V8_TARGET_ARCH_S390X && COMPRESS_POINTERS_BOOL)
 // TODO(v8:11421): Enable Sparkplug for these architectures.
 #define ENABLE_SPARKPLUG false