Merge patch series "Allow showing the memory map"

Simon Glass <sjg@chromium.org> says:

This little series adds a new 'memmap' command, intended to show the
layout of memory within U-Boot and how much memory is available for
loading images.

Link: https://lore.kernel.org/r/20241021081934.289473-1-sjg@chromium.org

diff --cc cmd/Kconfig
Simple merge

diff --cc cmd/Makefile
Simple merge

diff --cc include/asm-generic/global_data.h
Simple merge