PCI: Remove stray put_device() in pci_register_host_bridge()

[ Upstream commit 6e8d06e5096c80cbf41313b4a204f43071ca42be ]

This put_device() was accidentally left over from when we changed the code
from using device_register() to calling device_add().  Delete it.

Link: https://lore.kernel.org/r/55b24870-89fb-4c91-b85d-744e35db53c2@stanley.mountain


Fixes: 9885440b16b8 ("PCI: Fix pci_host_bridge struct device release/free handling")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>