clk: samsung: Remove support for Exynos5440

The Exynos5440 is not actively developed, there are no development
boards available and probably there are no real products with it.
Remove wide-tree support for Exynos5440.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Chanwoo Choi <[email protected]>
Acked-by: Stephen Boyd <[email protected]>
Acked-by: Sylwester Nawrocki <[email protected]>
4 files changed