5962 clean target fails in usr/src/common/avs

@@ -34,17 +34,18 @@
               ns/unistat
 
 # install rules
 install_h:= TARGET= install_h
 check:=     TARGET= check
+clean:=     TARGET= clean
 clobber:=   TARGET= clobber
 
 # standards checking rules
 
 install_h check: $(AVS_SUBDIRS)
 
-clobber: ns/rdc
+clean clobber: ns/rdc
 
 $(AVS_SUBDIRS): FRC
         @cd $@; pwd; $(MAKE) $(TARGET)
 
 FRC: