Add sepolicy-check, a utility for auditing selinux policy.

This is based on Joshua Brindle's sepolicy-inject.

Change-Id: Ie75bd56a2996481592dcfe7ad302b52f381d5b18
diff --git a/tools/Android.mk b/tools/Android.mk
index ab30c3c..3841588 100644
--- a/tools/Android.mk
+++ b/tools/Android.mk
@@ -33,3 +33,14 @@
 LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_PREBUILT)
+###################################
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := sepolicy-check
+LOCAL_MODULE_TAGS := optional
+LOCAL_C_INCLUDES := external/libsepol/include \
+                    external/libselinux/include
+LOCAL_SRC_FILES := sepolicy-check.c
+LOCAL_STATIC_LIBRARIES := libsepol libselinux
+
+include $(BUILD_HOST_EXECUTABLE)