Remove unnecessary #include files

Serprog compilation is now controlled by a Makefile variable.
Replace munmap with physunmap where appropriate.

Corresponding to flashrom svn r671.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

pcidev.c

@@ -20,10 +20,7 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include <fcntl.h>
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
 #include "flash.h"
 
 uint32_t io_base_addr;