IP Clos config on vQFX

# Mesh Topology
# +---------+              +---------+
# | spine01 |              | spine02 |
# +---------+              +---------+
#   |em4   \ em5        em5 /   em4|
#   |        \            /        |
#   |          \        /          |
#   |            \    /            |
#   |              \/              |
#   |             /  \             |
#   |           /      \           |
#   |         /          \         |
#   |em4    / em5      em5 \    em4|
# +---------+              +---------+
# | leaf03  |              | leaf04  |
# +---------+              +---------+