ethtool: bump to 2.6.39

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/ethtool/ethtool.mk

@@ -4,7 +4,7 @@
 #
 #############################################################
 
-ETHTOOL_VERSION = 2.6.38
+ETHTOOL_VERSION = 2.6.39
 ETHTOOL_SITE = $(BR2_KERNEL_MIRROR)/software/network/ethtool/
 
 $(eval $(call AUTOTARGETS,package,ethtool))