southbridge/intel: add IS_ENABLED() around Kconfig symbol references

Change-Id: I2b532522938123bb7844cef94cda0b44bcb98e45
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20350
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
diff --git a/src/southbridge/intel/bd82x6x/me.c b/src/southbridge/intel/bd82x6x/me.c
index 0e5187c..70ba301 100644
--- a/src/southbridge/intel/bd82x6x/me.c
+++ b/src/southbridge/intel/bd82x6x/me.c
@@ -42,7 +42,7 @@
 #include "me.h"
 #include "pch.h"
 
-#if CONFIG_CHROMEOS
+#if IS_ENABLED(CONFIG_CHROMEOS)
 #include <vendorcode/google/chromeos/gnvs.h>
 #endif
 
@@ -61,7 +61,7 @@
 /* MMIO base address for MEI interface */
 static u32 *mei_base_address;
 
-#if CONFIG_DEBUG_INTEL_ME
+#if IS_ENABLED(CONFIG_DEBUG_INTEL_ME)
 static void mei_dump(void *ptr, int dword, int offset, const char *type)
 {
 	struct mei_csr *csr;
@@ -457,7 +457,7 @@
 }
 #endif
 
-#if CONFIG_CHROMEOS && 0 /* DISABLED */
+#if IS_ENABLED(CONFIG_CHROMEOS) && 0 /* DISABLED */
 /* Tell ME to issue a global reset */
 int mkhi_global_reset(void)
 {
@@ -589,7 +589,7 @@
 	if (hfs.error_code || hfs.fpt_bad)
 		path = ME_ERROR_BIOS_PATH;
 
-#if CONFIG_ELOG
+#if IS_ENABLED(CONFIG_ELOG)
 	if (path != ME_NORMAL_BIOS_PATH) {
 		struct elog_event_data_me_extended data = {
 			.current_working_state = hfs.working_state,
@@ -678,7 +678,7 @@
 	}
 	printk(BIOS_DEBUG, "\n");
 
-#if CONFIG_CHROMEOS
+#if IS_ENABLED(CONFIG_CHROMEOS)
 	/* Save hash in NVS for the OS to verify */
 	chromeos_set_me_hash(extend, count);
 #endif