nb/amd/pi/00730F01/chipset.cb: don't call dummy function host bridge

Function 0 of the device that has the bridges to other buses is a dummy
function that can be left enabled to not have to shuffle around the
device function numbers when the first PCI bridge on that device isn't
enabled. That dummy device function is however not a PCI host bridge, so
change the comment from 'Dummy Host Bridge' to 'Dummy device function'.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Suggested-by: Nico Huber <nico.h@gmx.de>
Change-Id: I6069205bd2e1cb0f75025e9f330afc50462e742a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79397
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/northbridge/amd/pi/00730F01/chipset.cb b/src/northbridge/amd/pi/00730F01/chipset.cb
index bc79426..40eb3ef 100644
--- a/src/northbridge/amd/pi/00730F01/chipset.cb
+++ b/src/northbridge/amd/pi/00730F01/chipset.cb
@@ -11,7 +11,7 @@
 		device pci 0.2 alias iommu			off end
 		device pci 1.0 alias gfx			off end
 		device pci 1.1 alias gfx_hda			off end
-		device pci 2.0					on  end # Dummy Host Bridge, do not disable
+		device pci 2.0					on  end # Dummy device function, do not disable
 		device pci 2.1 alias gpp_bridge_0		off end
 		device pci 2.2 alias gpp_bridge_1		off end
 		device pci 2.3 alias gpp_bridge_2		off end