pkgbase: Put dhclient in its own package

It doesn't really make sense to have it in runtime and let's not
bloat utilities more.

Reviewed by:	emaste, imp
Differential Revision:	https://reviews.freebsd.org/D36222

release/packages/Makefile.package

@@ -34,6 +34,8 @@ csh_COMMENT=		C Shell
 csh_DESC=		C Shell
 cxgbe-tools_COMMENT=	Chelsio cxbge Utilities
 cxgbe-tools_DESC=	Chelsio cxbge Utilities
+dhclient_COMMENT=	DHCP Client
+dhclient_DESC=		DHCP Client
 dma_COMMENT= 		DMA Mail Agent Utilities
 dma_DESC= 		DMA Mail Agent Utilities
 docs_COMMENT= 		Documentation

sbin/dhclient/Makefile

@@ -34,7 +34,7 @@
 .include <src.opts.mk>
 
 CONFS=	dhclient.conf
-PACKAGE=runtime
+PACKAGE=dhclient
 SRCS=	dhclient.c clparse.c alloc.c dispatch.c hash.c bpf.c options.c \
 	tree.c conflex.c errwarn.c inet.c packet.c convert.c tables.c \
 	parse.c privsep.c