Integrate linux-guf/updated_audio_patch

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Commit: seco-ne/kernel/linux-guf@0fa8a7d7

audio:mqs: Fix audio popping when using the MQS

The i.MX6 ULL has an audio block equipped, that can generate audio via a
standard GPIO. Since the MQS (Medium Quality Sound) is a very basic audio
interface, it doesn't provide any filtering of unwanted artifacts in the
audio stream. This leads to a popping noise when playing audio on the
Nallino. The patch changes the SAI to always generate a signal for the
MQS and transfers the control of the external amplifier to the MQS driver.
This helps in reducing the noticeable interference when playing audio.

Original patch-set by Sam Crossman <sam.crossman@seco.com>

f750e64c3eb2a6e842ddf596b622e27628014cc0
22e654f06977e670f290075458163ff38130cff3
5b432bde337e97302e03fbdabc2641c74c4cfa13

BCS 746-001052