Add more libs for framework docs generation

These two libs are not in the default libs which caused droiddoc report
lots of "package not found warning" when generating offline/online docs.

Test: m -j ds-static-docs
Bug: b/70351683
Change-Id: Ibb1f5e1817895abb1b711dc537493bd93c77077b
diff --git a/Android.bp b/Android.bp
index 32dabdd..5b95e11 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1032,6 +1032,8 @@
     srcs_lib_whitelist_dirs: frameworks_base_subdirs,
     srcs_lib_whitelist_pkgs: packages_to_document,
     libs: [
+        "conscrypt",
+        "bouncycastle",
         "voip-common",
         "android.test.mock",
         "android-support-annotations",