Merge tag 'u-boot-imx-next-20250325' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx into next

CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/25324

- Imply the i.MX thermal driver by default on imx8, imx9, imx8m.
- Add clk_resolve_parent_clk() and fix up iMX clock drivers.