anv: Copy the appliation info into the instance

Cc: "18.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit 8c048af5)

Squashed with commit:

anv: Free the app and engine name

Fixes: 8c048af5 "anv: Copy the appliation info into the instance"
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit cdea5d99)