ARM: dts: exynos: Move audio clocks configuration to odroidxu3-audio.dtsi

Audio subsystem clocks configuration is a part of audio block,
so there it should be moved to exynos5422-odroidxu3-audio.dtsi
to avoid it on Odroid XU4, which has no audio codec.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>