clk: samsung: exynos4415: Move PLL rates data to init section

The arrays with initialization data of PLLs can be moved to initconst
section because they are referenced only from other initconst-level
symbols.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>