Tell the build system about APCT's requirements.

Bug: N/A
Test: N/A
Change-Id: I8a67e1ce5acc4142387878ba0bb542da0861e700
diff --git a/demangle/Android.bp b/demangle/Android.bp
index f3b4aa0..cf6abfd 100644
--- a/demangle/Android.bp
+++ b/demangle/Android.bp
@@ -80,4 +80,7 @@
     ],
 
     test_suites: ["device-tests"],
+    required: [
+        "libdemangle",
+    ],
 }
diff --git a/libbacktrace/Android.bp b/libbacktrace/Android.bp
index 49027f3..f38b7a2 100644
--- a/libbacktrace/Android.bp
+++ b/libbacktrace/Android.bp
@@ -190,6 +190,9 @@
         "testdata/x86/*",
         "testdata/x86_64/*",
     ],
+    required: [
+        "libbacktrace_test",
+    ],
 }
 
 cc_benchmark {