Move iOS bundle data for tests inside rtc_include_test.

This should fix issues like [1] which surfaced after landing [2] which
is not the direct cause though.

[1] - https://ci.chromium.org/ui/p/chromium/builders/webrtc.fyi/WebRTC%20Chromium%20FYI%20ios-device/8133/overview
[2] - https://webrtc-review.googlesource.com/c/src/+/200981

TBR=landrey@webrtc.org

Bug: None
Change-Id: Id222bf0df109711a4aaba708786b8f623e50b9f6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/202037
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33008}

test/scenario/BUILD.gn

@@ -31,19 +31,20 @@ if (is_ios || rtc_include_tests) {
   scenario_unittest_resources = [ "../../resources/foreman_cif.yuv" ]
 }
 
-if (is_ios) {
-  bundle_data("scenario_resources_bundle_data") {
-    testonly = true
-    sources = scenario_resources
-    outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
-  }
-  bundle_data("scenario_unittest_resources_bundle_data") {
-    testonly = true
-    sources = scenario_unittest_resources
-    outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
-  }
-}
 if (rtc_include_tests) {
+  if (is_ios) {
+    bundle_data("scenario_resources_bundle_data") {
+      testonly = true
+      sources = scenario_resources
+      outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
+    }
+    bundle_data("scenario_unittest_resources_bundle_data") {
+      testonly = true
+      sources = scenario_unittest_resources
+      outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
+    }
+  }
+
   rtc_library("scenario") {
     testonly = true
     sources = [