sample_updater: add non-streaming demo

SampleUpdater app was tested manually on a device.
There are unit tests for utility classes.

SampleUpdater app demonstrates how to use Android Update Engine to
apply A/B (seamless) update.
This CL contains demo of non-stream update using async update_engine,
which is accessed directly from an activity.
This app also shows logs from update_engine on the UI.
Instructions can be found in `README.md`.

- Create a UI with list of configs, current version, control buttons and a progress bar
- Add PayloadSpec and PayloadSpecs for working with update zip file
- Add UpdateConfig for working with json config files
- Add applying non-streaming update

Test: tested manually and unit tests for utilities
Change-Id: I05d4a46ad9cf8b334c9c60c7dd4da486dac0400a
Signed-off-by: Zhomart Mukhamejanov <zhomart@google.com>
diff --git a/sample_updater/Android.mk b/sample_updater/Android.mk
index 2b0fcbe..2786de4 100644
--- a/sample_updater/Android.mk
+++ b/sample_updater/Android.mk
@@ -15,13 +15,18 @@
 #
 
 LOCAL_PATH := $(call my-dir)
-
 include $(CLEAR_VARS)
 
-LOCAL_PACKAGE_NAME := SystemUpdateApp
+LOCAL_PACKAGE_NAME := SystemUpdaterSample
 LOCAL_SDK_VERSION := system_current
-LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_TAGS := samples
+
+# TODO: enable proguard and use proguard.flags file
+LOCAL_PROGUARD_ENABLED := disabled
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 include $(BUILD_PACKAGE)
+
+# Use the following include to make our test apk.
+include $(call all-makefiles-under,$(LOCAL_PATH))