dts: xtensa: intel_adsp: Remove ALH nodes from ACE 2.0 LNL DTS

Remove the Audio Link Hub (ALH) nodes from the ACE 2.0 LNL DTS file.

This patch cleans up the Device Tree Source by removing the individual
ALH stream/FIFO nodes. The ALH hardware is not present in the ACE 2.0
architecture, and these nodes are therefore not applicable.

Signed-off-by: Tomasz Leman <tomasz.m.leman@intel.com>