Launch Google Play system update page with new task flag.

Based on the large screen design, this page should be launched as
a new task to fulfill the new UI design.

Fix: 197702320
Test: Manually test the UI
Change-Id: I4b44209f2facec42eb7dc2d46e9a1c1a9516fc39

src/com/android/settings/deviceinfo/legal/ModuleLicensePreference.java

@@ -51,6 +51,7 @@ public class ModuleLicensePreference extends Preference {
                         ModuleLicenseProvider.LICENSE_FILE_MIME_TYPE)
                 .putExtra(Intent.EXTRA_TITLE, mModule.getName())
                 .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                 .addCategory(Intent.CATEGORY_DEFAULT)
                 .setPackage("com.android.htmlviewer");
         try {