Move drone extensions integration to a function. This allows us to
re-use the code and just depend on a single step rather than explicitly
defining all dependencies.
Signed-off-by: Noel Georgi <git@frezbo.dev>
This is required for https://github.com/siderolabs/sidero/pull/1070, as
we need to allow DHCP traffic from Sidero controller running in a VM
through the bridge to other VMs.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
