sd: updated balance-check and balance-top-up for Zain Sudan (bgo #712532)

https://bugzilla.gnome.org/show_bug.cgi?id=712532

Signed-off-by: Thomas Haller <thaller@redhat.com>
diff --git a/serviceproviders.xml b/serviceproviders.xml
index 4c126e8..6244beb 100644
--- a/serviceproviders.xml
+++ b/serviceproviders.xml
@@ -9789,6 +9789,12 @@
 		<name>Zain</name>
 		<gsm>
 			<network-id mcc="634" mnc="01"/>
+			<balance-check>
+				<ussd>*888#</ussd>
+			</balance-check>
+			<balance-top-up>
+				<ussd replacement="CODE">*888*CODE#</ussd>
+			</balance-top-up>
 			<apn value="internet">
 				<plan type="postpaid"/>
 				<usage type="internet"/>