Add test_suites lines.

Bug: N/A
Test: builds
Change-Id: Ic5e2b9206bcfcb53c774989013b5db6aab462e42
diff --git a/libkeyutils/Android.bp b/libkeyutils/Android.bp
index 0285259..f3593ff 100644
--- a/libkeyutils/Android.bp
+++ b/libkeyutils/Android.bp
@@ -13,4 +13,5 @@
     cflags: ["-Werror"],
     shared_libs: ["libkeyutils"],
     srcs: ["keyutils_test.cpp"],
+    test_suites: ["device-tests"],
 }