iOS: Include legacy objc API in all.gyp + fix H264 libyuv dependency

all.gyp

Index: all.gyp
diff --git a/all.gyp b/all.gyp
index c41988025af37931666183496eef7722e2bfe43b..21cc8b519df7b964a992f300d6b2a0aa07758997 100644
--- a/all.gyp
+++ b/all.gyp
@@ -26,9 +26,16 @@
             'webrtc/webrtc_examples.gyp:*',
           ],
         }],
-        ['(OS=="ios" or (OS=="mac" and target_arch!="ia32")) and include_tests==1', {
+        ['OS=="ios" or (OS=="mac" and target_arch!="ia32")', {
           'dependencies': [
-            'talk/app/webrtc/legacy_objc_api_tests.gyp:*',
+            'talk/app/webrtc/legacy_objc_api.gyp:*',
+          ],
+          'conditions': [
+            ['include_tests==1', {
+              'dependencies': [
+                'talk/app/webrtc/legacy_objc_api_tests.gyp:*',
+              ],
+            }],
           ],
         }],
       ],