[BUG] CLI Error if --tunnel is used before --dedicatedGnb

[abousselmi]

Describe the bug
If we use --tunnel is used before --dedicatedGnb (or -d) in the CLI, it throws an error.

For example, if we execute this

./packetrusher --config config.yml multi-ue -n 2 --tunnel true -d --tunnel-vrf false

we get:

FATA[0000] You cannot use the --tunnel option, without using the --dedicatedGnb option

To Reproduce
Steps to reproduce the behavior:

1. Execure ./packetrusher --config config.yml multi-ue -n 2 --tunnel true -d

Expected behavior
The CLI executes normally.

Architecture (please complete the following information):

• OS: Debian
• Platform x86_64
• Version 12
• Kernel 6.1.0-17-amd64