clk: clocking-wizard: move clock registration to separate function

Provide clear separation of dynamic reconfiguration logic, by moving its
setup procedure to its own dedicated function.

Signed-off-by: Harry Austen <hpausten@protonmail.com>
Link: https://lore.kernel.org/r/20240913191037.2690-5-hpausten@protonmail.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>