[APPLIED] [Natty] UBUNTU: SAUCE: ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge chipsets(v2)

[Andy Whitcroft]

As this patch has now hit mainline I confirmed that your patch was a
direct backport of what was there.  As it was a direct backport
equivalent I have commited this as an upstream patch rather than sauce.

Applied to Natty.

-apw