iproute2: bump to version 4.2.0

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Tested-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/iproute2/iproute2.hash

@@ -1,2 +1,2 @@
 # From https://kernel.org/pub/linux/utils/net/iproute2/sha256sums.asc
-sha256	73077a989efb934450bd655cbd9aaddaa747cb696c64d0c9a3323768a6a8e66f	iproute2-4.1.1.tar.xz
+sha256	a4101e743e0da36b55f63353ff489699ddcd634ceca854a9a272346588f30f30	iproute2-4.2.0.tar.xz

package/iproute2/iproute2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-IPROUTE2_VERSION = 4.1.1
+IPROUTE2_VERSION = 4.2.0
 IPROUTE2_SOURCE = iproute2-$(IPROUTE2_VERSION).tar.xz
 IPROUTE2_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/net/iproute2
 IPROUTE2_DEPENDENCIES = host-bison host-flex host-pkgconf \