devlink: Fix phys_port_name of virtual port and merge error

devlink: Fix phys_port_name of virtual port and merge error

Merge commit cited in fixes tag was incorrect. Due to it phys_port_name
of the virtual port resulted in incorrect name.

Also the phys_port_name of the physical port was written twice due to
the merge error.

Fix it by removing the old code and inserting back the misplaced code.

Related commits of interest in net and net-next branches that resulted
in merge conflict are:

in net-next branch:
commit c574f8f7c8c5 ("devlink: append split port number to the port name")

in net branch:
commit 8f91109f81cc ("devlink: Correct VIRTUAL port to not have phys_port attributes")

Fixes: 3d033a84bff ("Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reported-by: Niklas Schnelle <schnelle@linux.ibm.com>
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>