net: amd-xgbe: disable interrupts during pci removal

Hardware interrupts are enabled during the pci probe, however,
they are not disabled during pci removal.

Disable all hardware interrupts during pci removal to avoid any
issues.

Fixes: e7537740

 ("amd-xgbe: Update PCI support to use new IRQ functions")
Suggested-by: Selwin Sebastian <Selwin.Sebastian@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>