dataflash: fix parameters order in write_dataflash()

Fix parameters order in write_dataflash() function extern declaration in
the header file.
Parameters order, as in function definition, should be:
addr_dest, addr_src, size.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>

include/dataflash.h

@@ -207,7 +207,8 @@ extern int addr2ram(ulong addr);
 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
 extern int addr_dataflash (unsigned long addr);
 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
-extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
+extern int write_dataflash(unsigned long addr_dest, unsigned long addr_src,
+			unsigned long size);
 extern int AT91F_DataflashInit(void);
 
 extern void dataflash_print_info (void);