[ upstream commit 0112ddb ]

Add missing 'sudo' commands so that this can be run from a shell in a dev
VM to launch a local cilium agent in docker.

Only install the bpf mount unit to systemd if not already mounted. This
avoids error message like this:

    Unit sys-fs-bpf.mount has a bad unit file setting

With these changes Cilium agent can be compiled and launced in docker,
assuming the VM hostname does NOT include "k8s", like so:

   $ SKIP_TEST_IMAGE_DOWNLOAD=1 VMUSER=${USER} PROVISIONSRC=test/provision test/provision/compile.sh

After this 'docker ps' should show a "cilium" container.

This can be used, for example to quickly run Cilium agent locally to
observer agent startup and exit logs via 'docker logs cilium -f' when
stopping cilium with 'docker stop cilium'.

Signed-off-by: Jarno Rajahalme <jarno@isovalent.com>
Signed-off-by: Gilberto Bertin <jibi@cilium.io>