change #include "fileio.h" to <helper/fileio.h>

Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "fileio.h"

the following form should be used.

	#include <helper/fileio.h>

The exception is from .c files in the same directory.

src/flash/mflash.c

@@ -24,7 +24,7 @@
 #include "mflash.h"
 #include "target.h"
 #include "time_support.h"
-#include "fileio.h"
+#include <helper/fileio.h>
 #include "log.h"
 
 

src/flash/nand.c

@@ -27,7 +27,7 @@
 #include "nand.h"
 #include "common.h"
 #include "time_support.h"
-#include "fileio.h"
+#include <helper/fileio.h>
 
 static int nand_read_page(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
 //static int nand_read_plain(struct nand_device *nand, uint32_t address, uint8_t *data, uint32_t data_size);

src/target/image.h

@@ -26,7 +26,7 @@
 #ifndef IMAGE_H
 #define IMAGE_H
 
-#include "fileio.h"
+#include <helper/fileio.h>
 
 #ifdef HAVE_ELF_H
 #include <elf.h>