Update man8 Makefile

Commit (761a1e60 iproute2 - Split up manual page installation )
introduced man/man8/Makefile but did not add all the man pages.
This patch adds the missing man pages for installation.
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>

man/man8/Makefile

@@ -3,7 +3,11 @@ TARGETS = ip-address.8 ip-link.8 ip-route.8
 MAN8PAGES = $(TARGETS) ip.8 arpd.8 lnstat.8 routel.8 rtacct.8 rtmon.8 ss.8 \
 	tc-bfifo.8 tc-cbq-details.8 tc-cbq.8 tc-drr.8 tc-htb.8 \
 	tc-pfifo.8 tc-pfifo_fast.8 tc-prio.8 tc-red.8 tc-sfq.8 \
-	tc-tbf.8 tc.8 rtstat.8 ctstat.8 nstat.8 routef.8
+	tc-tbf.8 tc.8 rtstat.8 ctstat.8 nstat.8 routef.8 \
+	tc-sfb.8 tc-netem.8 tc-choke.8 ip-tunnel.8 ip-rule.8 ip-ntable.8 \
+	ip-monitor.8 tc-stab.8 tc-hfsc.8 ip-xfrm.8 ip-netns.8 \
+	ip-neighbour.8 ip-mroute.8 ip-maddress.8 ip-addrlabel.8
+
 
 all: $(TARGETS)