ARM: dts: exynos: add mmc aliases

Add aliases for eMMC, SD card and WiFi where applicable, so that
assigned mmc indeces are always the same.

Co-developed-by: Anton Bambura <jenneron@protonmail.com>
Signed-off-by: Anton Bambura <jenneron@protonmail.com>
[ Tested on exynos5800-peach-pi ]
Tested-by: Valentine Iourine <iourine@iourine.msk.su>
Signed-off-by: Henrik Grimler <henrik@grimler.se>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20230402144724.17839-3-henrik@grimler.se


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>