[Feature][YUKUAI_patch]add 18.02 code

Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I7f71153004f10fc0ea5adfa083866aaeeb1053ac
diff --git a/rootfs/usr/lib/opkg/alternatives/ping6 b/rootfs/usr/lib/opkg/alternatives/ping6
new file mode 100644
index 0000000..1735e66
--- /dev/null
+++ b/rootfs/usr/lib/opkg/alternatives/ping6
@@ -0,0 +1,2 @@
+/bin/ping6
+/usr/lib/busybox/bin/ping6 50