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

Replace `LGreater(a, b)` with `a > b`.

Change-Id: I86a11ab5d2667661af3491174001001e644083e3
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60685
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>

src/ec/quanta/it8518/acpi/battery.asl

@@ -317,7 +317,7 @@ Device (BATX)
 
 			// See if within ~3% of full
 			ShiftRight (Local2, 5, Local3)
-			If (LGreater (Local1, Local2 - Local3) && Local1 < Local2 + Local3)
+			If (Local1 > Local2 - Local3 && Local1 < Local2 + Local3)
 			{
 				Store (Local2, Local1)
 			}