package/apparmor: add a dependency on net-tools if utils is selected

package/apparmor: add a dependency on net-tools if utils is selected

aa-unconfied requires the full version of netstat provided by the net-tools
package. Without the full version, running aa-unconfined will result in the
error:
netstat: invalid option -- 'p'

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
[yann.morin.1998@free.fr:
  - net-ttols is a runtime depednency
  - select BB_SHOW_OTHERS
  - reorder depends
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>