clk: renesas: rcar-gen3: Grammar s/dependent of/dependent on/

Fix grammar in comments for cpg_z_clk_set_rate().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210326120100.1577596-5-geert+renesas@glider.be

drivers/clk/renesas/rcar-gen3-cpg.c

@@ -117,7 +117,7 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 	 *
 	 * Using experimental measurements, it seems that no more than
 	 * ~10 iterations are needed, independently of the CPU rate.
-	 * Since this value might be dependent of external xtal rate, pll1
+	 * Since this value might be dependent on external xtal rate, pll1
 	 * rate or even the other emulation clocks rate, use 1000 as a
 	 * "super" safe value.
 	 */