PCI/P2PDMA: Remove redundant goto

Remove redundant goto in pci_alloc_p2pmem().

Link: https://lore.kernel.org/r/20231023084050.55230-1-tstruk@gmail.com


Signed-off-by: Tadeusz Struk <tstruk@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>