Check out libcups by default when BuiltInPrintService is checked out

Change-Id: I6e756239c9ebf0c3be8db4fda5c7b5d4e76ff3e9

default.xml

@@ -192,6 +192,7 @@
   <project path="external/libcap-ng" name="platform/external/libcap-ng" groups="pdk" />
   <project path="external/libchrome" name="platform/external/libchrome" groups="pdk" />
   <project path="external/libconstrainedcrypto" name="platform/external/libconstrainedcrypto" groups="pdk" />
+  <project path="external/libcups" name="platform/external/libcups" groups="pdk" />
   <project path="external/libcxx" name="platform/external/libcxx" groups="pdk" />
   <project path="external/libcxxabi" name="platform/external/libcxxabi" groups="pdk" />
   <project path="external/libdivsufsort" name="platform/external/libdivsufsort" groups="pdk" />
@@ -471,7 +472,7 @@
   <project path="packages/screensavers/Basic" name="platform/packages/screensavers/Basic" groups="pdk-fs" />
   <project path="packages/screensavers/PhotoTable" name="platform/packages/screensavers/PhotoTable" groups="pdk-fs" />
   <project path="packages/screensavers/WebView" name="platform/packages/screensavers/WebView" groups="pdk-fs" />
-  <project path="packages/services/BuiltInPrintService" name="platform/packages/services/BuiltInPrintService" groups="pdk-fs" />
+  <project path="packages/services/BuiltInPrintService" name="platform/packages/services/BuiltInPrintService" groups="pdk" />
   <project path="packages/services/Car" name="platform/packages/services/Car" groups="adp8064,pdk-cw-fs,pdk-fs" />
   <project path="packages/services/Mms" name="platform/packages/services/Mms" groups="pdk-cw-fs,pdk-fs" />
   <project path="packages/services/NetworkRecommendation" name="platform/packages/services/NetworkRecommendation" groups="pdk-fs" />