net: phy: Remove static return type for phy_device_create()

Remove static return type for phy_device_create() to avoid file scope for
this function. Also add required prototype in phy.h.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Link: https://lore.kernel.org/r/1517f4053403fbd53e899d500e7485d068a4f0b6.1645627539.git.michal.simek@xilinx.com
2 files changed