msc: expect only one Paging on GERAN

After discussion on this thread:
http://lists.osmocom.org/pipermail/openbsc/2019-November/013058.html

Do not expect repeated Paging on GERAN.

Pending clarification on 3G, still expect repeated Paging on Iu, though we are
not 100% certain that this is indeed required.

Fixes MSC_Tests.TC_lu_and_mt_sms_paging_repeated,
but not MSC_Tests_Iu.TC_iu_lu_and_mt_sms_paging_repeated

Change-Id: Ie914ea88f31ac158f4bd1700143bbe728dd05e0b
1 file changed