Import module-lib and system-server api files too

The change I97ebd1b3ef6aa96d6a9a52a46ce86cfb91df4451 only added support
for grabbing the stub jar files. Grab the api files too.

Bug: 149293194
Test: ./update_prebuilts.py -f 30 <bid>
Change-Id: Ie2ee6d40fcbc5dc8f6041c62d3c227742cce3297
diff --git a/update_prebuilts/update_prebuilts.py b/update_prebuilts/update_prebuilts.py
index 937af90..8980de2 100755
--- a/update_prebuilts/update_prebuilts.py
+++ b/update_prebuilts/update_prebuilts.py
@@ -716,7 +716,7 @@
 def finalize_sdk(build_id, sdk_version):
     target_finalize_dir = '%d' % sdk_version
 
-    for api_scope in ['public', 'system', 'test']:
+    for api_scope in ['public', 'system', 'test', 'module-lib', 'system-server']:
         artifact_to_path = {'apistubs/android/' + api_scope + '/api/*.txt':
                             path(target_finalize_dir, api_scope, 'api', '*')}