Changes

bsc: Increase T3101 in osmo-bsc.cfg

Test BSC_Tests.TC_ho_during_lcs_loc_req sporafically failed due to ttcn3
taking >2s to transmit the Handover Complete and T3101 (3s by default)
firing before receiving it.
Increase it to give some more room and avoid sporadic failures.

See how 2nd RSL1.send() in as_handover() is delayed for >2s:
"""
09:50:39.134962 27946 MSC_ConnectionHandler.ttcn:1737 Sent on RSL1 to IPA-BTS1-TRX0-RSL-RSL(2945) @RSL_Types.RSL_Message : {
    msg_disc := {
        msg_group := RSL_MDISC_DCHAN (4),
        transparent := false
    },
    msg_type := RSL_MT_HANDO_DET (39),
    ies := {
        {
            iei := RSL_IE_CHAN_NR (1),
            body := {
                chan_nr := {
                    u := {
                        sdcch4 := {
                            tag := '001'B,
                            sub_chan := 0
                        }
                    },
                    tn := 0
                }
            }
        }
    }
}
...
09:50:39.135037 27946 Osmocom_Types.ttcn:126 Start timer T: 0.3 s
09:50:39.435079 27946 Osmocom_Types.ttcn:127 Timeout T: 0.3 s
09:50:39.718007 27937 M3UA_Emulation.ttcn:887 Timeout T_ASPUP_resend: 2 s
09:50:42.131009 27943 IPA_Emulation.ttcnpp:772 Message enqueued on IPA_PORT from system @IPL4asp_Types.ASP_RecvFrom : {
    connId := 1,
    remName := "127.0.0.1",
    remPort := 3003,
    locName := "127.0.0.1",
    locPort := 11000,
    proto := {
        tcp := { }
    },
    userData := 0,
    msg := '00040008250120'O
} id 17
09:50:42.188991 27946 MSC_ConnectionHandler.ttcn:1742 enc_PDU_ML3_MS_NW(): Encoding @MobileL3_Types.PDU_ML3_MS_NW: {
    discriminator := '0000'B,
    tiOrSkip := {
        skipIndicator := '0000'B
    },
    msgs := {
        rrm := {
            handoverComplete := {
                messageType := '00101100'B,
                rRCause := {
                    valuePart := '00'O
                },
                mobileObsservedTimeDiff := omit,
                mobileTimeDifferenceHyperframe := omit
            }
        }
    }
}
"""

Change-Id: I90f4bded452c33dab343b20fc4b209520991ea84