clk: clk-axi-clkgen move to min/max()

clk: clk-axi-clkgen move to min/max()

Instead of using the type versions of min/max(), use the plain ones as
now they are perfectly capable of handling different types like
unsigned and non negative integers that are compiletime constant.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250519-dev-axi-clkgen-limits-v6-6-bc4b3b61d1d4@analog.com
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>