net/ethernet: Use never-managed version of pci_intx()

pci_intx() is a hybrid function which can sometimes be managed through
devres. To remove this hybrid nature from pci_intx(), it is necessary to
port users to either an always-managed or a never-managed version.

broadcom/bnx2x and brocade/bna enable their PCI devices with
pci_enable_device(). Thus, they need the never-managed version.

Replace pci_intx() with pci_intx_unmanaged().

Link: https://lore.kernel.org/r/20241209130632.132074-5-pstanner@redhat.com


Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>