ec/quanta/it8518/acpi: Replace Multiply(a,b,c) with ASL 2.0 syntax

Replace `Multiply (a, b, c)` with `c = a * b`.

Change-Id: Ied407753ee3bb024c8c0350c45312c337ac799e5
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60649
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
diff --git a/src/ec/quanta/it8518/acpi/battery.asl b/src/ec/quanta/it8518/acpi/battery.asl
index 4fcc30c..316a342 100644
--- a/src/ec/quanta/it8518/acpi/battery.asl
+++ b/src/ec/quanta/it8518/acpi/battery.asl
@@ -119,7 +119,7 @@
 		//
 		If (Local7)
 		{
-			Multiply (SBFC, 10, PBIF[2])
+			PBIF[2] = SBFC * 10
 		}
 		Else
 		{
@@ -137,7 +137,7 @@
 		//
 		If (Local7)
 		{
-			Multiply (SBDC, 10, Local0)
+			Local0 = SBDC * 10
 		}
 		Else
 		{
@@ -286,7 +286,7 @@
 
 		If (Local6)
 		{
-			Multiply (ECVO, Local1, Local1)
+			Local1 *= ECVO
 			Divide (Local1, 1000, , Local1)
 		}
 		Store (Local1, PBST[1])
@@ -299,7 +299,7 @@
 		//   ACPI spec     : 0 - mWh   : 1 - mAh
 		If (Local6)
 		{
-			Multiply (ECRC, 10, Local1)
+			Local1 = ECRC * 10
 		}
 		Else
 		{