net: xgmac: Augment mdio read/write with cl-45 format support
Currently, clause-22 format is supported. This change adds
support for clause-45 format.
Signed-off-by: Nikunj Kela <nikunj.kela@sima.ai> Reviewed-by: Boon Khai Ng <boon.khai.ng@altera.com> Tested-by: Boon Khai Ng <boon.khai.ng@altera.com> Reviewed-by: Boon Khai Ng <boon.khai.ng@altera.com> Tested-by: Boon Khai Ng <boon.khai.ng@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>