package/iptuils: bump version to 3a86a2542c6fe29413c439bebeae11ec8a57ec7c

Remove 0001-ping-link-against-libm.patch as this has been fixed upstream.
See https://github.com/iputils/iputils/pull/42 and
https://github.com/iputils/iputils/commit/a5ddb78

Signed-off-by: Martin Bark <martin@barkynet.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/iputils/iputils.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256	0e98cb527fa175d1e08afb969c124e452b30968f10ec2c3b078f1440c8977a94	iputils-c8ff6feaf0442f8efd96ccb415770c54f9e84d47.tar.gz
+sha256	73de246aee1fd3cd69b1341a0c4e1b4acfa655fe6f7363fd9424824aa8bf5a57	iputils-3a86a2542c6fe29413c439bebeae11ec8a57ec7c.tar.gz

package/iputils/iputils.mk

@@ -11,7 +11,7 @@
 # and IPv6 updates.
 # http://www.spinics.net/lists/netdev/msg279881.html
 
-IPUTILS_VERSION = c8ff6feaf0442f8efd96ccb415770c54f9e84d47
+IPUTILS_VERSION = 3a86a2542c6fe29413c439bebeae11ec8a57ec7c
 IPUTILS_SITE = $(call github,iputils,iputils,$(IPUTILS_VERSION))
 IPUTILS_LICENSE = GPLv2+, BSD-3c, BSD-4c
 # Only includes a license file for BSD