Revert "misc: Remove generic PRINT macros from hello world samples"

This reverts commit 86507b1.

Change-Id: I5dc7bb2808f9fc942f48de798902a7185fb05d99
Signed-off-by: Andrew Boie <[email protected]>

Author: Andrew Boie

samples/hello_world/microkernel/prj.conf

@@ -1,2 +1 @@
 CONFIG_STDOUT_CONSOLE=y
-CONFIG_SYS_LOG=y

samples/hello_world/microkernel/src/main.c

@@ -16,10 +16,15 @@
 
 #include <zephyr.h>
 
-#define SYS_LOG_LEVEL SYS_LOG_LEVEL_INFO
-#include <misc/sys_log.h>
+#if defined(CONFIG_STDOUT_CONSOLE)
+#include <stdio.h>
+#define PRINT           printf
+#else
+#include <misc/printk.h>
+#define PRINT           printk
+#endif
 
 void main(void)
 {
-	SYS_LOG_INF("Hello World! %s", CONFIG_ARCH);
+	PRINT("Hello World! %s\n", CONFIG_ARCH);
 }

samples/hello_world/nanokernel/prj.conf

@@ -1 +1 @@
-CONFIG_SYS_LOG=y
+# nothing yet

samples/hello_world/nanokernel/src/main.c

@@ -15,8 +15,15 @@
  */
 
 #include <zephyr.h>
-#define SYS_LOG_LEVEL SYS_LOG_LEVEL_INFO
-#include <misc/sys_log.h>
+
+#if defined(CONFIG_STDOUT_CONSOLE)
+#include <stdio.h>
+#define PRINT           printf
+#else
+#include <misc/printk.h>
+#define PRINT           printk
+#endif
+
 
 /*
  * @file
@@ -27,6 +34,6 @@
 
 void main(void)
 {
-	SYS_LOG_INF("Hello World! %s", CONFIG_ARCH);
+	PRINT("Hello World! %s\n", CONFIG_ARCH);
 }