clk: clk-qoriq: Replace of_node_put() with __free()

Use __free() to have automatic cleanup instead of calling of_node_put()
manually.

Compiled without errors or warnings.

Signed-off-by: David Hunter <david.hunter.linux@gmail.com>
Link: https://lore.kernel.org/r/20240918123925.41511-1-david.hunter.linux@gmail.com


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