ec/google/chromeec/acpi: Replace LNotEqual(a,b) with ASL 2.0 syntax

Replace `LNotEqual(a, b)` with `a != b`.

Change-Id: I2e0c5961fcc90c97666f49837a71f6c0bdc429b3
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60699
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>

src/ec/google/chromeec/acpi/battery.asl

@@ -19,7 +19,7 @@ Method (BTSW, 1)
 	}
 	Store (Arg0, \_SB.PCI0.LPCB.EC0.BTID)
 	Store (5, Local0)      // Timeout 5 msec
-	While (LNotEqual (BTIX, Arg0))
+	While (BTIX != Arg0)
 	{
 		Sleep (1)
 		Local0--
@@ -29,7 +29,7 @@ Method (BTSW, 1)
 		}
 	}
 #else
-	If (LNotEqual (0, Arg0)) {
+	If (Arg0 != 0) {
 		Return (One)
 	}
 #endif
@@ -180,7 +180,7 @@ Method (BBST, 4, Serialized)
 	Store (Local1, Arg1[0])
 
 	// Notify if battery state has changed since last time
-	If (LNotEqual (Local1, DeRefOf (Arg2))) {
+	If (Local1 != DeRefOf (Arg2)) {
 		Store (Local1, Arg2)
 		If (Arg0 == 0) {
 			Notify (BAT0, 0x80)

src/ec/google/chromeec/acpi/ec.asl

@@ -494,7 +494,7 @@ Device (EC0)
 			Store (^PATI, Local0)
 
 			/* When sensor ID returns 0xFF then no more events */
-			While (LNotEqual (Local0, EC_TEMP_SENSOR_NOT_PRESENT))
+			While (Local0 != EC_TEMP_SENSOR_NOT_PRESENT)
 			{
 #ifdef HAVE_THERM_EVENT_HANDLER
 				\_SB.DPTF.TEVT (Local0)