superio/acpi: Replace LLess(a,b) with ASL 2.0 syntax

Replace `LLess(a, b)` with `a < b`.

Change-Id: I407d061ac7664d4910b8759fd1a72eab133b6e22
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60675
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>

src/superio/acpi/pnp_config.asl

@@ -46,7 +46,7 @@ Method (ENTER_CONFIG_MODE, 1)
 #endif
 #endif
 #endif
-	If (LLess(Arg0, PNP_NO_LDN_CHANGE)) {
+	If (Arg0 < PNP_NO_LDN_CHANGE) {
 		Store(Arg0, PNP_LOGICAL_DEVICE)
 	}
 }