suppress lint warning for random generator on older android -> no need to have this secure

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

src/main/java/com/owncloud/android/authentication/AuthenticatorActivity.java

@@ -1920,6 +1920,7 @@ public class AuthenticatorActivity extends AccountAuthenticatorActivity
      * TODO Decide how to name the OAuth accounts
      */
     @SuppressFBWarnings("DMI")
+    @SuppressLint("TrulyRandom")
     private boolean createAccount(RemoteOperationResult authResult) {
         String accountType = MainApp.getAccountType(this);