Add test_suites lines.

Bug: N/A
Test: builds
Change-Id: Ic5e2b9206bcfcb53c774989013b5db6aab462e42
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 6868f18..d411cee 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -186,6 +186,7 @@
         "libgmock",
     ],
 
+    test_suites: ["device-tests"],
     data: [
         "tests/files/elf32.xz",
         "tests/files/elf64.xz",