Disabled tests dhcp6.sockets and dhcp6.sendReceive

Both fail on BSD systems due to different interface name (lo0 instead of lo)
Will reenable them once 1186 is merged that contains fix for that.

src/bin/dhcp6/tests/iface_mgr_unittest.cc

@@ -139,7 +139,11 @@ TEST_F(IfaceMgrTest, detectIfaces) {
     delete ifacemgr;
 }
 
-TEST_F(IfaceMgrTest, sockets) {
+// TODO: disabled due to other naming on various systems
+// (lo in Linux, lo0 in BSD systems)
+// Fix for this is available on 1186 branch, will reenable
+// this test once 1186 is merged
+TEST_F(IfaceMgrTest, DISABLED_sockets) {
     // testing socket operation in a portable way is tricky
     // without interface detection implemented
 
@@ -198,7 +202,11 @@ TEST_F(IfaceMgrTest, socketsMcast) {
     delete ifacemgr;
 }
 
-TEST_F(IfaceMgrTest, sendReceive) {
+// TODO: disabled due to other naming on various systems
+// (lo in Linux, lo0 in BSD systems)
+// Fix for this is available on 1186 branch, will reenable
+// this test once 1186 is merged
+TEST_F(IfaceMgrTest, DISABLED_sendReceive) {
     // testing socket operation in a portable way is tricky
     // without interface detection implemented