net-shapers: implement NL set and delete operations

JIRA: https://issues.redhat.com/browse/RHEL-89973

commit 93954b4
Author: Paolo Abeni <pabeni@redhat.com>
Date:   Wed Oct 9 10:09:50 2024 +0200

    net-shapers: implement NL set and delete operations
    
    Both NL operations directly map on the homonymous device shaper
    callbacks, update accordingly the shapers cache and are serialized
    via a per device lock.
    Implement the cache modification helpers to additionally deal with
    NODE scope shaper. That will be needed by the group() operation
    implemented in the next patch.
    The delete implementation is partial: does not handle NODE scope
    shaper yet. Such support will require infrastructure from
    the next patch and will be implemented later in the series.
    
    Reviewed-by: Jiri Pirko <jiri@nvidia.com>
    Signed-off-by: Paolo Abeni <pabeni@redhat.com>
    Link: https://patch.msgid.link/1e6a34a4095b35d773d2b9c476164671bbcf8397.1728460186.git.pabeni@redhat.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>

Author: jtornosm