task-gpephone.bb: Move to obsolete

Signed-off-by: Khem Raj <raj.khem@gmail.com>

diff --git a/recipes/tasks/task-gpephone.bb b/recipes/obsolete/tasks/task-gpephone.bb
similarity index 100%
rename from recipes/tasks/task-gpephone.bb
rename to recipes/obsolete/tasks/task-gpephone.bb