Rename CONFIG_LIBC_AIO to CONFIG_FS_AIO since it is now an OS property

examples/ostest/Kconfig

@@ -35,7 +35,7 @@ config EXAMPLES_OSTEST_NBARRIER_THREADS
 config EXAMPLES_OSTEST_AIO
 	bool "Asynchronous I/O Tests"
 	default n
-	depends on LIBC_AIO && FS_WRITABLE
+	depends on FS_AIO && FS_WRITABLE
 	---help---
 		Enables test of asynchronous I/O.  You must have a mounted, writable
 		directory in place to use this test.

examples/ostest/aio.c

@@ -50,7 +50,7 @@
 
 #include "ostest.h"
 
-#ifdef CONFIG_LIBC_AIO
+#ifdef CONFIG_FS_AIO
 
 /****************************************************************************
  * Pre-processor Definitions
@@ -228,4 +228,4 @@ void aio_test(void)
 
 }
 
-#endif /* CONFIG_LIBC_AIO */
+#endif /* CONFIG_FS_AIO */

examples/ostest/ostest.h

@@ -113,7 +113,7 @@ void fpu_test(void);
 
 /* aio.c ********************************************************************/
 
-#ifdef CONFIG_LIBC_AIO
+#ifdef CONFIG_FS_AIO
 void aio_test(void);
 #endif
 

examples/ostest/ostest_main.c

@@ -326,7 +326,7 @@ static int user_main(int argc, char *argv[])
       check_test_memory_usage();
 #endif
 
-#ifdef CONFIG_LIBC_AIO
+#ifdef CONFIG_FS_AIO
       /* Check asynchronous I/O */
 
       printf("\nuser_main: AIO test\n");