Fix targetSdkVersion to be consistent with gradle builds

The manifest value is always overridden in gradle builds,
so this is for internal builds only. The value should be
the same (i.e. 25!).

Also fix IMA build to force the right support library
version, attempt 2!

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=164103183

demos/main/src/main/AndroidManifest.xml

@@ -23,7 +23,7 @@
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
   <uses-feature android:name="android.software.leanback" android:required="false"/>
   <uses-feature android:name="android.hardware.touchscreen" android:required="false"/>
-  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="24"/>
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="25"/>
 
   <application
       android:label="@string/application_name"

extensions/ima/build.gradle

@@ -20,7 +20,7 @@ dependencies {
     // |-- com.google.android.gms:play-services-ads-lite:[11.0.2] -> 11.0.2
     //   |-- com.google.android.gms:play-services-basement:[11.0.2] -> 11.0.2
     //     |-- com.android.support:support-v4:25.2.0
-    compile 'com.android.support:support-annotations:' + supportLibraryVersion
+    compile 'com.android.support:support-v4:' + supportLibraryVersion
     compile 'com.google.ads.interactivemedia.v3:interactivemedia:3.7.4'
     compile 'com.google.android.gms:play-services-ads:11.0.2'
     androidTestCompile project(modulePrefix + 'library')