smdk4412: Boeffla Sound 1.6.5

Change-Id: I05aed9e86a5ddc8eb917e253afa1768dda79f089
smdk4412: Provide available freq sysfs for exynos.

Needed for the frequency slider in Performance Settings to work properly.

Change-Id: If01258234d216a1ee37fb7b090c012b3d6cd09be