Replace TFM_CONFIG_USE_TRUSTZONE with CONFIG_TFM_USE_TRUSTZONE

For consistency with others with both prefixes

Signed-off-by: Chris Brand <chris.brand@cypress.com>
Change-Id: I0c9f17362dc5f19c534900d60c0b8d61ff012768
diff --git a/secure_fw/spm/include/tfm_secure_api.h b/secure_fw/spm/include/tfm_secure_api.h
index 4b5e453..96c809a 100644
--- a/secure_fw/spm/include/tfm_secure_api.h
+++ b/secure_fw/spm/include/tfm_secure_api.h
@@ -10,7 +10,7 @@
 #ifndef __TFM_SECURE_API_H__
 #define __TFM_SECURE_API_H__
 
-#ifdef TFM_CONFIG_USE_TRUSTZONE
+#ifdef CONFIG_TFM_USE_TRUSTZONE
 #include <arm_cmse.h>
 #endif
 #include "tfm_arch.h"