net: dsa: ar9331: register the mdiobus under devres

net: dsa: ar9331: register the mdiobus under devres

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.
This ID is fixed in Linux Kernel version v5.15.24 by commit aae1c6a1d3d696fc33b609fb12fe744a556d1dc5, it was introduced in version v5.9 by commit ac3a68d56651c3dad2c12c7afce065fe15267f44. For more details please see the references link.