soc/intel/cannonlake: Use SBI msg to disable HECI1

Select HECI_DISABLE_USING_SMM config for Cannon Lake to disable HECI1
device using the SBI msg in SMM.

BUG=none
TEST=None

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I6882b619506d1bf4131f68c2c9a32ef4f7d6f6d7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61451
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/soc/intel/cannonlake/Kconfig

@@ -109,6 +109,7 @@ config CPU_SPECIFIC_OPTIONS
 
 config DISABLE_HECI1_AT_PRE_BOOT
 	default y if MAINBOARD_HAS_CHROMEOS
+	select HECI_DISABLE_USING_SMM
 
 config MAX_CPUS
 	int

src/soc/intel/cannonlake/smihandler.c

@@ -16,7 +16,7 @@
  */
 void smihandler_soc_at_finalize(void)
 {
-	if (CONFIG(DISABLE_HECI1_AT_PRE_BOOT) && CONFIG(HECI_DISABLE_USING_SMM))
+	if (CONFIG(DISABLE_HECI1_AT_PRE_BOOT))
 		heci1_disable();
 }