nb/intel/haswell: Use ASL 2.0 syntax

Tested with BUILD_TIMELESS=1, Asrock B85M Pro4 does not change.

Change-Id: I9c69028ff13efa6999b6110fbcd9233a09def991
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44152
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>

src/northbridge/intel/haswell/acpi/hostbridge.asl

@@ -173,12 +173,12 @@ Device (MCHC)
 		If (Acquire (CTCM, 100)) {
 			Return (0)
 		}
-		If (LEqual (CTCD, CTCC)) {
+		If (CTCD == CTCC) {
 			Release (CTCM)
 			Return (0)
 		}
 
-		Store ("Set TDP Down", Debug)
+		Debug = "Set TDP Down"
 
 		/* Set CTC */
 		CTCS = CTCD
@@ -214,7 +214,7 @@ Device (MCHC)
 			Return (0)
 		}
 
-		Store ("Set TDP Nominal", Debug)
+		Debug = "Set TDP Nominal"
 
 		/* Set PL1 */
 		PL1V = CTDN