Cannot configure the PHY mode of a port to 'Fiber'

[mikhaeld]

In the following, there's a typo that prevents the port's PHY from being configured in Fiber mode.

PyIxExplorer/ixexplorer/ixe_port.py

Lines 13 to 17 in e30c00f

	class IxePhyMode(Enum):
	copper = "portPhyModeCopper"
	fiber = "portPhyModeFibber"
	sgmii = "portPhyModeSgmii"
	ignore = None

At line 15, instead of portPhyModeFibber it should be portPhyModeFiber (with single 'b')