ARM: dts: aspeed: yosemite4: set bus13 frequency to 100k

Since the ocp debug card only supports 100k, the bus is also set to 100k.
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
[AJ: Fixed fuzz due to prior IPMB patch]
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts

@@ -369,7 +369,7 @@ rtc@6f {
 
 &i2c13 {
 	status = "okay";
-	bus-frequency = <400000>;
+	bus-frequency = <100000>;
 	multi-master;
 
 	ipmb@10 {