rush: audio: Add I2C1 init and audio clock enable/resets

This should allow the max98090 codec to play beeps via
AHUB/I2S1 thru the depthcharge sound driver.

BUG=none
BRANCH=none
TEST=Saw max98090 codec init signon and register dump.
No sound yet.

Change-Id: I0bc8401e76b2c80a01083ac933a39f6cd4d1b78a
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/229496
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
2 files changed