Merge patch series "spl: mmc: Some tweaks for SPL, particularly with MMC"

Simon Glass <sjg@chromium.org> says:

This series includes various minor fixes and tweaks found when trying
to reduce the size of MMC code in SPL.

diff --cc configs/imx8mm_data_modul_edm_sbc_defconfig
Simple merge

diff --cc configs/imx8mp_data_modul_edm_sbc_defconfig
Simple merge

diff --cc configs/phycore-imx8mp_defconfig
Simple merge