[U-Boot] mmc: meson: switch mmc slot order and allow to store environment in eMMC

In most cases Odroid C2 is used with a eMMC card. So far the eMMC slot was assigned dev number 1 (0 is the SD slot). So on uboot prompt we had to manually switch the mmc device first. Therefore change the device number assignment. Thanks to Jaehoon for the hint how to do it.

In addition allow to store the uboot environment in eMMC.

Heiner Kallweit (2): arm: dts: odroid-c2: assign mmc device number 0 to eMMC slot odroid-c2: support storing the uboot environment in eMMC

arch/arm/dts/meson-gxbb-odroidc2.dts | 2 ++ include/configs/meson-gxbb-common.h | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-)