Give faw + jurij HELPERS rather than a list of hints

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>

This ensures that changes to HELPERS (e.g. the addition of udeb hints)
automatically propagate to the relevant users

britney.conf

@@ -47,8 +47,8 @@ HINTS_NEILM       = STANDARD
 HINTS_FREEZE      = block block-all block-udeb
 HINTS_FREEZE-EXCEPTION = unblock unblock-udeb
 HINTS_ADSB        = STANDARD force force-hint
-HINTS_FAW         = easy hint remove block unblock approve 
-HINTS_JURIJ       = easy hint remove block unblock approve 
+HINTS_FAW         = HELPERS
+HINTS_JURIJ       = HELPERS
 
 # support for old libraries in testing (smooth update)
 # use ALL to enable smooth updates for all the sections