net: phy: dp83822: Configure RMII mode on DP83825 devices

net: phy: dp83822: Configure RMII mode on DP83825 devices

Like the DP83826, the DP83825 can also be configured as an RMII master or
slave via a control register. The existing function responsible for this
configuration is renamed to a general dp8382x function. The DP83825 only
supports RMII so nothing more needs to be configured.

With this change, the dp83822_driver list is reorganized according to the
device name.

Signed-off-by: Erik Schumacher <erik.schumacher@iris-sensing.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/aa62d081804f44b5af0e8de2372ae6bfe1affd34.camel@iris-sensing.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>