MAINTAINERS: Add PCI host bridge files to PReP machine

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Acked-by: Alexander Graf <agraf@suse.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index de2a916..148f0d2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -307,6 +307,7 @@
 M: Andreas Färber <andreas.faerber@web.de>
 S: Odd Fixes
 F: hw/ppc_prep.c
+F: hw/prep_pci.[hc]
 
 SH4 Machines
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