package/wireguard-linux-compat: add missing comment about kernel dependency
Add a comment when kernel is not enabled (missing since the addition of
the package in commit de591c5c3a93a40d049a32bd79c30cc66daf5fb2)
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 5eedd33368eedc22bbc542e870af677d0b3da834)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>