net: stmmac: pass interface mode into fix_mac_speed() method

net: stmmac: pass interface mode into fix_mac_speed() method

Pass the current interface mode reported by phylink into the
fix_mac_speed() method. This will be used by qcom-ethqos for its
"SGMII" configuration.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vuSKv-0000000AScG-1zv6@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>