tree: Replace Or(a,b,c) with ASL 2.0 syntax

Replace `Or (a, b, c)` with `c = a | b`, respectively `c |= b` where
possible.

Change-Id: Icf194b248075f290de90fb4bc4e9a0cd9d76ec61
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70846
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/cannonlake/acpi/scs.asl

@@ -53,7 +53,7 @@ Scope (\_SB.PCI0) {
 			PGEN = 1 // Enable PG
 
 			/* Set Power State to D3 */
-			Or (PMCR, 0x0003, PMCR)
+			PMCR |= 3
 			^TEMP = PMCR
 		}
 
@@ -223,7 +223,7 @@ Scope (\_SB.PCI0) {
 			PGEN = 1 /* Enable PG */
 
 			/* Set Power State to D3 */
-			Or (PMCR, 0x0003, PMCR)
+			PMCR |= 3
 			^TEMP = PMCR
 
 #if CONFIG(MB_HAS_ACTIVE_HIGH_SD_PWR_ENABLE)