net: phy: motorcomm: uninitialized variables in yt8531_link_change_notify()

These booleans are never set to false, but are just used without being
initialized.

Fixes: 4ac94f72 ("net: phy: Add driver for Motorcomm yt8531 gigabit ethernet phy")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Frank Sae <Frank.Sae@motor-comm.com>
Link: https://lore.kernel.org/r/Y+xd2yJet2ImHLoQ@kili


Signed-off-by: Jakub Kicinski <kuba@kernel.org>