LIB: Move NS test apps to use printf

There is no reason why the NS test apps need to use a custom logging
library and it makes it much less complicated for them to use printf
provided with the compiler.

Change-Id: Id16a84da2357b08bc6eb4fa9e30e04ad7125d2a1
Signed-off-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
diff --git a/lib/log/tfm_tests_log_msg.h b/lib/log/tfm_tests_log_msg.h
index fbbe7bc..deee64f 100644
--- a/lib/log/tfm_tests_log_msg.h
+++ b/lib/log/tfm_tests_log_msg.h
@@ -8,12 +8,12 @@
 #ifndef __TFM_LOG_H__
 #define __TFM_LOG_H__
 
-#include "tfm_log_raw.h"
+#include <stdio.h>
 
 /* Functions and macros in this file is for 'thread mode' usage. */
 
 #ifdef TFM_NS_LOG
-#define LOG_MSG(...) tfm_log_printf(__VA_ARGS__)
+#define LOG_MSG(...) printf(__VA_ARGS__)
 #else
 #define LOG_MSG(...)
 #endif