binaryPI: Remove ACPI for IMC we don't run

IMC is used on some of the AMD reference designs, so do not
touch them yet.

Change-Id: I6a58ab53d4a800d4c0c2026e50826122ece2c59f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/21190
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>

src/southbridge/amd/pi/hudson/acpi/fch.asl

@@ -154,11 +154,13 @@ Method(_INI, 0) {
 	/* Determine the OS we're running on */
 	OSFL()
 
-#if IS_ENABLED(CONFIG_ACPI_ENABLE_THERMAL_ZONE)
+#if IS_ENABLED(CONFIG_HUDSON_IMC_FWM)
 	/* TODO: It is unstable. */
 	#include "acpi/AmdImc.asl" /* Hudson IMC function */
+#if IS_ENABLED(CONFIG_ACPI_ENABLE_THERMAL_ZONE)
 	ITZE() /* enable IMC Fan Control*/
 #endif
+#endif
 } /* End Method(_SB._INI) */
 
 Method(OSFL, 0){