net: phy: aquantia: call aqr_gen2_fill_interface_modes() for AQCS109

net: phy: aquantia: call aqr_gen2_fill_interface_modes() for AQCS109

I don't have documentation or hardware to test, but according to commit
99c864667c9f ("net: phy: aquantia: add support for AQCS109"), "From
software point of view, it should be almost equivalent to AQR107."

I am relatively confident that the GLOBAL_CFG registers read by
aqr_gen2_fill_interface_modes() are supported, because
aqr_gen2_read_status(), currently used by AQCS109, also reads them, and
I'm unaware of any reported problem.

The change is necessary because a future patch will introduce a
requirement for all aqr_gen2_read_status() callers to have previously
called aqr_gen2_read_global_syscfg(). This is done through
aqr_gen2_fill_interface_modes().

Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250821152022.1065237-11-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>