ARM: tegra: enable audio on Beaver
ARM: tegra: enable audio on Beaver

Beaver uses the RT5640 audio CODEC. Instantiate this on the I2C bus, and
add the top-level "sound" node to hook everything together and provide a
"sound card" device.

Signed-off-by: Stephen Warren <5ef2a23ba3aff51d1cfc8c113c1ec34b608b3b13@nvidia.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs