i2c: designware_i2c: Correct the selection of speed mode

Unfortunately a recent change adjusted the order of the checks here such
that 400MHz now shows up as fast-plus speed (1Mbps). Fix it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Fixes: d96440d1 ("i2c: designware_i2c: Add support for fast-plus speed")

drivers/i2c/designware_i2c.c

@@ -212,9 +212,9 @@ static int calc_bus_speed(struct dw_i2c *priv, int speed, ulong bus_clk,
 	if (speed >= I2C_SPEED_HIGH_RATE &&
 	    (!scl_sda_cfg || scl_sda_cfg->has_high_speed))
 		i2c_spd = IC_SPEED_MODE_HIGH;
-	else if (speed >= I2C_SPEED_FAST_RATE)
-		i2c_spd = IC_SPEED_MODE_FAST_PLUS;
 	else if (speed >= I2C_SPEED_FAST_PLUS_RATE)
+		i2c_spd = IC_SPEED_MODE_FAST_PLUS;
+	else if (speed >= I2C_SPEED_FAST_RATE)
 		i2c_spd = IC_SPEED_MODE_FAST;
 	else
 		i2c_spd = IC_SPEED_MODE_STANDARD;