Changing min sdk to 25

Change-Id: I0d28069967854357ca755bf25dec19d4979bdecf
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index ebab122..24b5b02 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -18,7 +18,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.android.launcher3.tests">
 
-    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"
+    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="25"
               tools:overrideLibrary="android.support.test.uiautomator.v18"/>
 
     <application android:debuggable="true">