SCCP_Tests.default: Use "SccpDemoUser" as VTY prompt

It seems that our TTCN3 VTY/Telnet module no longer supports '-'
inside prompt.  However, older sccp_demu_user programs in
libosmo-sccp.git before Change-Id
I4b6d7dd6fdf7521a4a9071e50ac1dcb2993c74bb use this.

Let's adjust our expectation here to the new dash-less variant.

Change-Id: Ib00f1f89bf1484d8a8e07be8c0a1fc849bcf03a0
1 file changed