clk: amlogic: drop meson-clkcee

clk: amlogic: drop meson-clkcee

What is being done by the Amlogic clock controller registration helper for
EE controllers could benefit other controllers. As such, having a specific
module for this makes little sense.

Move the helper function to clkc-utils and rename it to describe what it
does, registering syscon based controller, instead of what it serves.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-1-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>