Merge patch series "U-boot: arm: Refine the booting on Total Compute"

Leo Yan <leo.yan@arm.com> says:

This patch series is to refine the booting on Arm Total Compuate
platform.

It changes to use the info passed in DTB for initialization DRAM info,
and dynamically initializes the booting envoironment variables.

Another big change is to use an envoironment file for boot commands,
based on it, the series extends to support multiple block devices
(MMC and virtio). And the env file is extended for booting Debian.

The last commit is to update memory mapping info based on the DRAM info
passed via DT binding.

Link: https://lore.kernel.org/r/20241025171821.624702-1-leo.yan@arm.com