mb/packardbell: Convert to ASL 2.0 syntax

Built for packardbell/ms2290 provides same build/dsdt.dsl file.

Change-Id: I5f1dbb2595c3ee8cb35bb8a6431288f4a96ce978
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/src/mainboard/packardbell/ms2290/acpi/platform.asl b/src/mainboard/packardbell/ms2290/acpi/platform.asl
index 297eeb4..9ec8e6e 100644
--- a/src/mainboard/packardbell/ms2290/acpi/platform.asl
+++ b/src/mainboard/packardbell/ms2290/acpi/platform.asl
@@ -46,47 +46,47 @@
 		 */
 
 		/* Let's assume we're running at least Windows 2000 */
-		Store (2000, OSYS)
+		OSYS = 2000
 
 		If (CondRefOf(_OSI)) {
 			If (_OSI("Windows 2001")) {
-				Store (2001, OSYS)
+				OSYS = 2001
 			}
 
 			If (_OSI("Windows 2001 SP1")) {
-				Store (2001, OSYS)
+				OSYS = 2001
 			}
 
 			If (_OSI("Windows 2001 SP2")) {
-				Store (2002, OSYS)
+				OSYS = 2002
 			}
 
 			If (_OSI("Windows 2001.1")) {
-				Store (2001, OSYS)
+				OSYS = 2001
 			}
 
 			If (_OSI("Windows 2001.1 SP1")) {
-				Store (2001, OSYS)
+				OSYS = 2001
 			}
 
 			If (_OSI("Windows 2006")) {
-				Store (2006, OSYS)
+				OSYS = 2006
 			}
 
 			If (_OSI("Windows 2006.1")) {
-				Store (2006, OSYS)
+				OSYS = 2006
 			}
 
 			If (_OSI("Windows 2006 SP1")) {
-				Store (2006, OSYS)
+				OSYS = 2006
 			}
 
 			If (_OSI("Windows 2009")) {
-				Store (2009, OSYS)
+				OSYS = 2009
 			}
 
 			If (_OSI("Windows 2012")) {
-				Store (2012, OSYS)
+				OSYS = 2012
 			}
 		}
 	}
diff --git a/src/mainboard/packardbell/ms2290/acpi/thermal.asl b/src/mainboard/packardbell/ms2290/acpi/thermal.asl
index 8d24127..a693504 100644
--- a/src/mainboard/packardbell/ms2290/acpi/thermal.asl
+++ b/src/mainboard/packardbell/ms2290/acpi/thermal.asl
@@ -6,13 +6,13 @@
 
 	Method(C2K, 1, NotSerialized)
 	{
-		Multiply(Arg0, 10, Local0)
-		Add (Local0, 2732, Local0)
-		if (LLessEqual(Local0, 2732)) {
+		Local0 = Arg0 * 10
+		Local0 += 2732
+		if (Local0 <= 2732) {
 			Return (3000)
 		}
 
-		if (LGreater(Local0, 4012)) {
+		if (Local0 > 4012) {
 			Return (3000)
 		}
 		Return (Local0)
@@ -25,10 +25,10 @@
 		}
 		Method(_TMP) {
 			/* Avoid tripping alarm if ME isn't booted at all yet */
-			If (LAnd (LNot (MEBT), LEqual (\_SB.PCI0.LPCB.EC.TMP0, 128))) {
+			If (!MEBT && (\_SB.PCI0.LPCB.EC.TMP0 == 128)) {
 				Return (C2K(40))
 			}
-			Store (1, MEBT)
+			MEBT = 1
 			Return (C2K(\_SB.PCI0.LPCB.EC.TMP0))
 		}
 	}