agl-service-unincens: update app-templates

Removes cmake warning complaining about outdated app-templates
submodule.

Change-Id: I3ef24cee7e39ccce3df8db36d90d5816650d258f
Signed-off-by: Tobias Jahnke <tobias.jahnke@microchip.com>

diff --git a/conf.d/app-templates b/conf.d/app-templates
index 6e1a3c3..3c99b8a 160000 (submodule)
--- a/conf.d/app-templates
+++ b/conf.d/app-templates
@@ -1 +1 @@
-Subproject commit 6e1a3c37e94f42f5307fd1fa749823b2d160a56b
+Subproject commit 3c99b8a2cb7b784dcb5f23aa63345d60bfe9952d