small fix for BUILD.gn

Header generating action needs to be in public_deps if generated header is included from header file in the targets depending on the action target.

See below reference for more details.
https://gn.googlesource.com/gn/+/master/docs/reference.md#var_public_deps

Bug: chromium:931596
Change-Id: I198d9e09b8585b213ec4b375f10aecc6268f3bdd
Reviewed-on: https://chromium-review.googlesource.com/c/1469545Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59579}

BUILD.gn

@@ -1321,6 +1321,9 @@ v8_source_set("v8_initializers") {
 
   deps = [
     ":torque_generated_initializers",
+  ]
+
+  public_deps = [
     ":v8_base",
   ]
 
@@ -2970,8 +2973,6 @@ v8_source_set("v8_base") {
 
   defines = []
   deps = [
-    ":generate_bytecode_builtins_list",
-    ":run_torque",
     ":v8_headers",
     ":v8_libbase",
     ":v8_libsampler",
@@ -2979,10 +2980,13 @@ v8_source_set("v8_base") {
     "src/inspector:inspector",
   ]
 
-  if (v8_enable_i18n_support) {
   public_deps = [
-      "//third_party/icu",
+    ":generate_bytecode_builtins_list",
+    ":run_torque",
   ]
+
+  if (v8_enable_i18n_support) {
+    public_deps += [ "//third_party/icu" ]
     if (is_win) {
       deps += [ "//third_party/icu:icudata" ]
     }