ixgene-v2: prepare for phylib stop exporting phy_10_100_features_array

ixgene-v2: prepare for phylib stop exporting phy_10_100_features_array

As part of phylib cleanup we plan to stop exporting the feature arrays.
So explicitly remove the modes not supported by the MAC. The media type
bits don't have any impact on kernel behavior, so don't touch them.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Link: https://patch.msgid.link/be356a21-5a1a-45b3-9407-3a97f3af4600@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>