clk: samsung: exynos5410: Use samsung_cmu_register_one() to simplify code

This patch uses the samsung_cmu_register_one() to simplify code
and move the pll/mux/div/gate data to initconst section.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>