ARM: EXYNOS: Add AUXDATA support for MSHC controllers

Add entries if MSHC controllers in AUXDATA table for correct
device name initialization.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>