MLK-22570-1 mx8mqevk: Add OP-TEE Device Tree Bindings

MLK-22570-1 mx8mqevk: Add OP-TEE Device Tree Bindings

Currently is not possible to use dek_blob command in
mx8mq:

u-boot=> dek_blob 0x40400000 0x40401000 128
Cannot get OP-TEE device

Add OP-TEE Device Tree Bindings to fix this issue.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
(cherry picked from commit f762fe218ec60025e2dfd6173efaa826286ba297)
(cherry picked from commit ffc0afa58547e102f1231f0c42048d18923d84ec)