ARM: dts: aspeed: bletchley: add sample averaging for ADM1278

set number of sample averaging to 128 for both PWR_AVG and VI_AVG
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Reviewed-by: Patrick Williams <patrick@stwcx.xyz>
Link: https://lore.kernel.org/r/20220418094827.6185-1-potin.lai@quantatw.comSigned-off-by: Joel Stanley <joel@jms.id.au>

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

@@ -821,6 +821,8 @@ adm1278@11 {
 		compatible = "adi,adm1278";
 		reg = <0x11>;
 		shunt-resistor-micro-ohms = <300>;
+		adi,volt-curr-sample-average = <128>;
+		adi,power-sample-average = <128>;
 	};
 
 	tmp421@4c {