ASoC: spacemit: add K3 SoC support

Troy Mitchell <troy.mitchell@linux.spacemit.com> says:

This series adds K3 SoC support for the SpacemiT I2S controller driver.

Patch 1 adds the dt-bindings for the spacemit,k3-i2s compatible. The K3
SoC uses the same I2S IP as K1 but requires additional clocks
(sysclk_div, c_sysclk, c_bclk) that are shared across multiple I2S
controllers.

Patch 2 adds driver support for K3 SoC with additional clocks.

Link: https://patch.msgid.link/20260522-k3-i2s-v3-0-08e3eb811d93@linux.spacemit.com