clk: imx: composite-8m: remove round_rate() in favor of determine_rate()

This driver implements both the determine_rate() and round_rate() clk
ops, and the round_rate() clk ops is deprecated. When both are defined,
clk_core_determine_round_nolock() from the clk core will only use the
determine_rate() clk ops, so let's remove the round_rate() clk ops since
it's unused.

Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20250710-clk-imx-round-rate-v1-1-5726f98e6d8d@redhat.com
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: masneyb

drivers/clk/imx/clk-composite-8m.c

@@ -73,21 +73,6 @@ static int imx8m_clk_composite_compute_dividers(unsigned long rate,
 	return ret;
 }
 
-static long imx8m_clk_composite_divider_round_rate(struct clk_hw *hw,
-						unsigned long rate,
-						unsigned long *prate)
-{
-	int prediv_value;
-	int div_value;
-
-	imx8m_clk_composite_compute_dividers(rate, *prate,
-						&prediv_value, &div_value);
-	rate = DIV_ROUND_UP(*prate, prediv_value);
-
-	return DIV_ROUND_UP(rate, div_value);
-
-}
-
 static int imx8m_clk_composite_divider_set_rate(struct clk_hw *hw,
 					unsigned long rate,
 					unsigned long parent_rate)
@@ -153,7 +138,6 @@ static int imx8m_divider_determine_rate(struct clk_hw *hw,
 
 static const struct clk_ops imx8m_clk_composite_divider_ops = {
 	.recalc_rate = imx8m_clk_composite_divider_recalc_rate,
-	.round_rate = imx8m_clk_composite_divider_round_rate,
 	.set_rate = imx8m_clk_composite_divider_set_rate,
 	.determine_rate = imx8m_divider_determine_rate,
 };