sound fixes for 4.1-rc5 This batch became slightly large, just because I've been on vacation for the last two weeks. Nothing to scare much here, all device-specific fixes, mostly small patches. Majority of patches are for HD-audio, especially Dell machines. The rest are small ASoC fixes for various codecs, and a USB-audio quirk. One PCM fix is included to ease the faulty condition checks in the case of two periods PCM buffers.