[Maverick SRU] (pre-stable) ALSA: HDA: Correctly apply position_fix quirks for ATI and VIA controllers

[David Henningsson]

BugLink: http://launchpad.net/bugs/465942
BugLink: http://launchpad.net/bugs/580749
BugLink: http://launchpad.net/bugs/587546

SRU Justification:

Impact: Without the patch, crackling or suddenly disappearing audio on 
some laptops.

Fix: Accepted into Takashi's tree today. The attached patch is a 
backported version for 2.6.32 and 2.6.35 trees. It has also been sent to 
stable at kernel.org.

Testcase: Apply the patch and make sure audio is working. Testing for 
half an hour or so should be enough.

-- 
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
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