scsi: ufs: qcom: dt-bindings: Document the Kaanapali UFS controller

Document the UFS Controller on the Kaanapali Platform.

Signed-off-by: Nitin Rawat <nitin.rawat@oss.qualcomm.com>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Message-Id: <20250924-knp-ufs-v1-1-42e0955a1f7c@oss.qualcomm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>