audio: codec: Add driver for MAX98091 codec

This patch adds a minimal driver for the MAX98091 audio codec.
Currently, playback functionality is supported.

Co-developed-by: Rutvij Trivedi <rutvij.trivedi@siliconsignals.io>
Signed-off-by: Rutvij Trivedi <rutvij.trivedi@siliconsignals.io>
Co-developed-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Silicon Signals <siliconsignalsforgit@gmail.com>