On our deb10fr VMs we have the modified kernel HDLC module supporting
the frame relay MTU up to 1700 bytes, so let's extend our tests to cover
that. Mainline kernels only support 1500 bytes.
Depends: osmo-ttcn3-hacks.git I8e38ecf6b270c81bd73ee43b1fa0b259a999c14b
Change-Id: Id25532edbf5e1a918ad038723da464723d6f03f0