net: phy: realtek: clear 1000Base-T link partner advertisement

Clear 1000Base-T link partner advertisement bits in Clause-45
read_status() function in case auto-negotiation is disabled or has not
been completed.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/9dc9b47b2d675708afef3ad366bfd78eb584d958.1728565530.git.daniel@makrotopia.org


Signed-off-by: Paolo Abeni <pabeni@redhat.com>