device/sample: Enhanced example to include usage of exposing APIs

Change-Id: Id0c0b2201ecb3d087ec1ae48b6629ee4f403dbfb
diff --git a/sdk_addon/manifest.ini b/sdk_addon/manifest.ini
index fc82727..2a0be24 100644
--- a/sdk_addon/manifest.ini
+++ b/sdk_addon/manifest.ini
@@ -13,7 +13,7 @@
 description=sample add-on
 
 # version of the Android platform on which this add-on is built.
-api=3
+api=15
 
 # revision of the add-on. This must be a strict integer.
 revision=1