soc/intel/acpi: Replace Multiply(a,b,c) with ASL 2.0 syntax

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

Change-Id: I97332e3008ed2e26a75c067baffdabfc7cfcf65f
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70627
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
diff --git a/src/soc/intel/baytrail/acpi/dptf/dptf.asl b/src/soc/intel/baytrail/acpi/dptf/dptf.asl
index b8b05f7..db7f80c 100644
--- a/src/soc/intel/baytrail/acpi/dptf/dptf.asl
+++ b/src/soc/intel/baytrail/acpi/dptf/dptf.asl
@@ -60,7 +60,7 @@
 	/* Convert from Degrees C to 1/10 Kelvin for ACPI */
 	Method (CTOK, 1) {
 		/* 10th of Degrees C */
-		Multiply (Arg0, 10, Local0)
+		Local0 = Arg0 * 10
 
 		/* Convert to Kelvin */
 		Local0 += 2732
diff --git a/src/soc/intel/braswell/acpi/dptf/dptf.asl b/src/soc/intel/braswell/acpi/dptf/dptf.asl
index 5047fca..443447c 100644
--- a/src/soc/intel/braswell/acpi/dptf/dptf.asl
+++ b/src/soc/intel/braswell/acpi/dptf/dptf.asl
@@ -60,7 +60,7 @@
 	/* Convert from Degrees C to 1/10 Kelvin for ACPI */
 	Method (CTOK, 1) {
 		/* 10th of Degrees C */
-		Multiply (Arg0, 10, Local0)
+		Local0 = Arg0 * 10
 
 		/* Convert to Kelvin */
 		Local0 += 2732
diff --git a/src/soc/intel/braswell/acpi/lpc.asl b/src/soc/intel/braswell/acpi/lpc.asl
index fca8017..fb61c53 100644
--- a/src/soc/intel/braswell/acpi/lpc.asl
+++ b/src/soc/intel/braswell/acpi/lpc.asl
@@ -37,7 +37,7 @@
 		{
 			CreateDwordField (^RBUF, ^FBAR._BAS, FBAS)
 			CreateDwordField (^RBUF, ^FBAR._LEN, FLEN)
-			Multiply(CONFIG_COREBOOT_ROMSIZE_KB, 1024, Local0)
+			Local0 = CONFIG_COREBOOT_ROMSIZE_KB * 1024
 			Store(Local0, FLEN)
 			FBAS = 0xffffffff - Local0 + 1
 			Return (^RBUF)