VLAN PCP parameter is out of bounds from the 3-bit value in OpenFlowPluginTestCommandProvider

The value needs to be 0-7 to be in a 3-bit boundary for frame priority:
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//Snip
VlanPcp pcp1 = new VlanPcp((short) 9);

//Throws
osgi> addMDFlow foo:node:1 f80
gogo: IllegalArgumentException: Invalid range: 9
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Will patch and update in a few minutes with a Change-Id.

Thanks,
-Brent