rp-pppoe : moved unused files to obsolete dir

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>

diff --git a/recipes/rp-pppoe/rp-pppoe-3.8/pppoe-no-timeout.patch b/recipes/obsolete/rp-pppoe/rp-pppoe-3.8/pppoe-no-timeout.patch
similarity index 100%
rename from recipes/rp-pppoe/rp-pppoe-3.8/pppoe-no-timeout.patch
rename to recipes/obsolete/rp-pppoe/rp-pppoe-3.8/pppoe-no-timeout.patch