mach-exynos: UNIVERSAL5410 MMC: Enable SDR104, double bus bandwidth

Enable SDR104 UHS SD card modes and double the controller's bus bandwidth to 160MHz.

Tested on various SD cards and max read jumps from ~35mB/s to +70mB/s.

Change-Id: Icfda4b4a556aa2e80de170eb29e567b6c7b54e7f
Signed-off-by: Andrei F <luxneb@gmail.com>