Xfail test_MMI due to bug 915038
Merge pull request #1350 from zacc/xfail_imei_915038

Xfail test_MMI due to bug 915038
Xfail test_call_contacts with bug 914823
Merge pull request #1351 from zacc/xfail_call_contact_914823

Xfail test_call_contacts with bug 914823