sdk doc change: Added KeyChain API Demo

Change-Id: I8ea879bf30f933c745e33dafa6591fce77251eb6
diff --git a/Android.mk b/Android.mk
index 83c4b5b..b7ea254 100644
--- a/Android.mk
+++ b/Android.mk
@@ -443,6 +443,8 @@
 		            resources/samples/HoneycombGallery "Honeycomb Gallery" \
 		-samplecode $(sample_dir)/JetBoy \
 		            resources/samples/JetBoy "JetBoy" \
+		-samplecode $(sample_dir)/KeyChainDemo \
+		            resources/samples/KeyChainDemo "KeyChain Demo" \
 		-samplecode $(sample_dir)/LunarLander \
 		            resources/samples/LunarLander "Lunar Lander" \
 		-samplecode $(sample_dir)/training/ads-and-ux \