lpadmin: new group for cups

Java wants cups and cups wants this group.  Add it.

BUG=chromium:346369
TEST=`emerge cups` now works

Change-Id: I54cbc3f005210d51f64237fe8a36e14e046eb73e
Reviewed-on: https://chromium-review.googlesource.com/272590
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Nam Nguyen <namnguyen@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
diff --git a/profiles/base/accounts/group/lpadmin b/profiles/base/accounts/group/lpadmin
new file mode 100644
index 0000000..d56756e
--- /dev/null
+++ b/profiles/base/accounts/group/lpadmin
@@ -0,0 +1,2 @@
+group:lpadmin
+gid:269