Add spdx-tools and licenseclassifier to soong mocks

Change-Id: I8d394fe1f0633f433b76f66929294e6537e1f809
diff --git a/tests/lib.sh b/tests/lib.sh
index 26608b8..715eac1 100644
--- a/tests/lib.sh
+++ b/tests/lib.sh
@@ -94,9 +94,11 @@
   symlink_directory external/compiler-rt
   symlink_directory external/go-cmp
   symlink_directory external/golang-protobuf
+  symlink_directory external/licenseclassifier
   symlink_directory external/starlark-go
   symlink_directory external/python
   symlink_directory external/sqlite
+  symlink_directory external/spdx-tools
 
   touch "$MOCK_TOP/Android.bp"
 }