[mobile-broadband-provider-info] cz: add O2 balance check and top-up

[Lubomir Rintel <lkundrak src gnome org>]

commit ead3afa53766fba1d53c33fd5f720d398007c2dc
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Thu Mar 31 13:17:26 2016 +0200

    cz: add O2 balance check and top-up
    
    Source: https://www.o2.cz/osobni/volani-a-tarify/170410-jak_dobit_kredit.html

 serviceproviders.xml |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/serviceproviders.xml b/serviceproviders.xml
index 0f5875c..3d8fbe6 100644
--- a/serviceproviders.xml
+++ b/serviceproviders.xml
@@ -3005,6 +3005,12 @@ conceived.
        <provider>
                <name>O2</name>
                <gsm>
+                       <balance-check>
+                               <ussd>*104*#</ussd>
+                       </balance-check>
+                       <balance-top-up>
+                               <ussd replacement="CODE">*102*CODE#</ussd>
+                       </balance-top-up>
                        <network-id mcc="230" mnc="02"/>
                        <apn value="internet">
                                <plan type="postpaid"/>