remoteproc: imx_rproc: Merge TCML/U

Merge contiguous TCML/U regions into one to avoid load elf files which
has large sections failure.

Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20240719-imx_rproc-v2-4-10d0268c7eb1@nxp.com


Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>