clk: sunxi: Remove unused struct 'gates_data'

'gates_data' (and it's associated define) are unused since
commit ee38b269 ("clk: sunxi: Add a simple gates driver").
Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240509230516.86023-1-linux@treblig.org


Signed-off-by: Chen-Yu Tsai <wens@csie.org>