clk: at91: clk-h32mx: replace dm_warn with dev_dbg

dm_warn is too noisy, replace with dev_dbg for less noise.

Based on original work by Wenyou Yang

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index 485a023..8f02d73 100644
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -26,7 +26,7 @@
 		rate /= 2;
 
 	if (rate > H32MX_MAX_FREQ)
-		dm_warn("H32MX clock is too fast\n");
+		dev_dbg(clk->dev, "H32MX clock is too fast\n");
 
 	return rate;
 }