Net: dns_resolver: Makefile: Remove deprecated kbuild goal definitions

Changed Makefile to use <modules>-y instead of <modules>-objs
because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.
Signed-off-by: NTracey Dent <tdent48227@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/dns_resolver/Makefile

@@ -4,4 +4,4 @@
 
 obj-$(CONFIG_DNS_RESOLVER) += dns_resolver.o
 
-dns_resolver-objs :=  dns_key.o dns_query.o
+dns_resolver-y :=  dns_key.o dns_query.o