fix android beam demo path

Change-Id: I16a467155feac54fb14b1b7af034a3854efe1fb7

Author: scottamain

Android.mk

@@ -403,7 +403,7 @@ web_docs_sample_code_flags := \
 		-samplecode $(sample_dir)/ActionBarCompat \
 		            resources/samples/ActionBarCompat "Action Bar Compatibility" \
                 -samplecode $(sample_dir)/AndroidBeamDemo \
-		            resources/samples/AndroidBeam "Android Beam Demo" \
+		            resources/samples/AndroidBeamDemo "Android Beam Demo" \
 		-samplecode $(sample_dir)/ApiDemos \
 		            resources/samples/ApiDemos "API Demos" \
 		-samplecode $(sample_dir)/Support4Demos \