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: Simon Glass <sjg@chromium.org>
Fixes: d96440d1e3 ("i2c: designware_i2c: Add support for fast-plus speed")
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c
index e1d5aeb..0b5e70a 100644
--- a/drivers/i2c/designware_i2c.c
+++ b/drivers/i2c/designware_i2c.c
@@ -212,9 +212,9 @@
 	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;