added stdio.h to includes for DBG compilation

src/arch/i386/core/load_buffer.c

@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include "io.h"
 #include "load_buffer.h"
 

src/arch/i386/core/relocate.c

@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <io.h>
 #include <registers.h>
 #include <memmap.h>

src/arch/i386/firmware/pcbios/hidemem.c

@@ -15,6 +15,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <realmode.h>
 #include <biosint.h>
 

src/arch/i386/firmware/pcbios/memmap.c

@@ -16,6 +16,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <errno.h>
 #include <realmode.h>

src/arch/i386/interface/pcbios/int13.c

@@ -16,6 +16,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <limits.h>
 #include <byteswap.h>

src/arch/i386/interface/pxe/pxe_call.c

@@ -16,6 +16,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <gpxe/uaccess.h>
 #include <registers.h>
 #include <biosint.h>