PCI: Add lockdep assertion in pci_stop_and_remove_bus_device()

PCI: Add lockdep assertion in pci_stop_and_remove_bus_device()

Removing a PCI devices requires holding pci_rescan_remove_lock. Prompted by
this being missed in sriov_disable() and going unnoticed since its
inception, add a lockdep assert so this doesn't get missed again in the
future.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Julian Ruess <julianr@linux.ibm.com>
Link: https://patch.msgid.link/20250826-pci_fix_sriov_disable-v1-2-2d0bc938f2a3@linux.ibm.com