Fix bsp mistake

Author: hathach

hw/bsp/board.c

@@ -25,14 +25,6 @@
 
 #include "board_api.h"
 
-//--------------------------------------------------------------------+
-// Board API
-//--------------------------------------------------------------------+
-int board_getchar(void) {
-  char c;
-  return (sys_read(0, &c, 1) > 0) ? (int) c : (-1);
-}
-
 //--------------------------------------------------------------------+
 // newlib read()/write() retarget
 //--------------------------------------------------------------------+
@@ -134,3 +126,11 @@ FILE *const stdin = &__stdio;
 __strong_reference(stdin, stdout);
 __strong_reference(stdin, stderr);
 #endif
+
+//--------------------------------------------------------------------+
+// Board API
+//--------------------------------------------------------------------+
+int board_getchar(void) {
+  char c;
+  return (sys_read(0, &c, 1) > 0) ? (int) c : (-1);
+}