net: phy: reword get_phy_device() kerneldoc

 * @addr: PHY address on the MII bus

 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol

 *

 * Description: Reads the ID registers of the PHY at @addr on the

 *   @bus, then allocates and returns the phy_device to represent it.

 * Probe for a PHY at @addr on @bus.

 *

 * When probing for a clause 22 PHY, then read the ID registers. If we find

 * a valid ID, allocate and return a &struct phy_device.

 *

 * When probing for a clause 45 PHY, read the "devices in package" registers.

 * If the "devices in package" appears valid, read the ID registers for each

 * MMD, allocate and return a &struct phy_device.

 *

 * Returns an allocated &struct phy_device on success, %-ENODEV if there is

 * no PHY present, or %-EIO on bus access error.

 */

struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)

{