Updated BUILD.gn to link fuzzilli

Change-Id: Ia303e0384aee4f6998599fc9f04104517c51aa66
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2249663
Commit-Queue: Peter Ralbovsky <ralbovsky@google.com>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68531}

BUILD.gn

@@ -3264,13 +3264,6 @@ v8_source_set("v8_base_without_compiler") {
     ]
   }
 
-  if (v8_fuzzilli) {
-    sources += [
-      "src/d8/cov.cc",
-      "src/d8/cov.h",
-    ]
-  }
-
   if (v8_check_header_includes) {
     # This file will be generated by tools/generate-header-include-checks.py
     # if the "check_v8_header_includes" gclient variable is set.
@@ -4666,6 +4659,13 @@ v8_executable("d8") {
     "src/d8/d8.h",
   ]
 
+  if (v8_fuzzilli) {
+    sources += [
+      "src/d8/cov.cc",
+      "src/d8/cov.h",
+    ]
+  }
+
   configs = [
     # Note: don't use :internal_config here because this target will get
     # the :external_config applied to it by virtue of depending on :v8, and