MAINTAINERS: add missing PCI entries

Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

MAINTAINERS

@@ -930,6 +930,8 @@ F: include/hw/pci/*
 F: hw/misc/pci-testdev.c
 F: hw/pci/*
 F: hw/pci-bridge/*
+F: docs/pci*
+F: docs/specs/*pci*
 
 ACPI/SMBIOS
 M: Michael S. Tsirkin <mst@redhat.com>