Add support for ECDSA signatures

This adds support for key version 5 which is an EC key using the NIST
P-256 curve parameters. OTAs may be signed with these keys using the
ECDSA signature algorithm with SHA-256.

Change-Id: Id88672a3deb70681c78d5ea0d739e10f839e4567
diff --git a/tests/Android.mk b/tests/Android.mk
new file mode 100644
index 0000000..4d99d52
--- /dev/null
+++ b/tests/Android.mk
@@ -0,0 +1,26 @@
+# Build the unit tests.
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+# Build the unit tests.
+test_src_files := \
+    asn1_decoder_test.cpp
+
+shared_libraries := \
+    liblog \
+    libcutils
+
+static_libraries := \
+    libgtest \
+    libgtest_main \
+    libverifier
+
+$(foreach file,$(test_src_files), \
+    $(eval include $(CLEAR_VARS)) \
+    $(eval LOCAL_SHARED_LIBRARIES := $(shared_libraries)) \
+    $(eval LOCAL_STATIC_LIBRARIES := $(static_libraries)) \
+    $(eval LOCAL_SRC_FILES := $(file)) \
+    $(eval LOCAL_MODULE := $(notdir $(file:%.cpp=%))) \
+    $(eval LOCAL_C_INCLUDES := $(LOCAL_PATH)/..) \
+    $(eval include $(BUILD_NATIVE_TEST)) \
+)
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