[PATCH] Multiple (ICH3) IDE-controllers in a system

This fixes a problem with multiple IDE controllers in a system.

The problem is that pcibios_fixups table (in arch/i386/pci/fixup.c) uses
the pci_fixup_ide_trash() quirk for Intel's ICH3 (my case specifically
8086:248b).  This clears any bogus BAR information set up by the BIOS.

In a system which has multiple ICH3's can't use any of the IDE
controllers beside the one on the first ICH3.

Anyhow, the fix is to make sure pci_fixup_ide_trash resets the BARs only
for first time being called, so the subsequent IDE controllers will use
the BIOS BARs.  This is better than "loosing" all these IDE controllers
in the case their BARs set right.

The issue discussed and agreed with Bartlomiej Zolnierkiewicz (see below).

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