arch/x86/acpi: Replace Increment() with ASL 2.0 syntax

Replace `Increment(a)` with `a++`.

Change-Id: I45ce13509f3e93d7d8cd69689604f24b926bcfbc
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60579
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>

src/arch/x86/acpi/debug.asl

@@ -153,7 +153,7 @@ Method(DBGO, 1)
 				return (0)
 			}
 			OUTC(Local0)
-			Increment(Local1)
+			Local1++
 		}
 	}
 	return (0)

src/arch/x86/acpi/globutil.asl

@@ -50,7 +50,7 @@ Method(SCMP, 2)
 				Return(Ones)
 			}
 		}
-		Increment(Local4)
+		Local4++
 	}
 	if (LLess(Local4, Local5)) {
 		Return(One)
@@ -82,7 +82,7 @@ Method(WCMP, 2)
 			Derefof(Local1[Local2]))) {
 			Return(0)
 		}
-		Increment(Local2)
+		Local2++
 	}
 	Return(One)
 }