Move audio_codec_speed_tests into include_tests==1 condition.

I made a mistake in https://webrtc-codereview.appspot.com/37859004
and moved this target out of the include_tests==1 condition.
This moves it back in.

TBR=tina.legrand@webrtc.org
BUG=4185

Review URL: https://webrtc-codereview.appspot.com/33139004

Cr-Commit-Position: refs/heads/master@{#8198}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8198 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_coding/audio_coding.gypi

@@ -21,6 +21,15 @@
     'main/acm2/audio_coding_module.gypi',
     'neteq/neteq.gypi',
   ],
+  'conditions': [
+    ['include_opus==1', {
+      'includes': ['codecs/opus/opus.gypi',],
+    }],
+    ['include_tests==1', {
+      'includes': [
+        'codecs/isac/isac_test.gypi',
+        'codecs/isac/isacfix_test.gypi',
+      ],
       'targets': [
         {
           'target_name': 'audio_codec_speed_tests',
@@ -48,15 +57,6 @@
           ],
         },
       ],
-  'conditions': [
-    ['include_opus==1', {
-      'includes': ['codecs/opus/opus.gypi',],
-    }],
-    ['include_tests==1', {
-      'includes': [
-        'codecs/isac/isac_test.gypi',
-        'codecs/isac/isacfix_test.gypi',
-      ],
     }],
     ['OS=="android"', {
       'targets': [