Merge tag 'u-boot-imx-next-20250313' 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/25142

- Support Toradex i.MX6 Apalis/Colibri v1.2 SoM.
- Guard tee.bin inclusion on imx9,
- Remove unneeded regulator entry on DH i.MX6 DHCOM DRC02 devicetree.
- Add i.MX mailbox driver
- Convert ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE to Kconfig.
- Cope with existing optee node on imx8m.