Split spi.c into programmer and chip code Remove chipdriver.h include from flash.h

Some of the spi programmer drivers required chipdrivers.h, needs fixing later:
  it87spi.c
  ichspi.c
  sb600spi.c
  wbsio_spi.c
  buspirate_spi.c
  ft2232spi.c
  bitbang_spi.c
  dediprog.c

Corresponding to flashrom svn r914.

Signed-off-by: Sean Nelson <audiohacked@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

it87spi.c

@@ -26,6 +26,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include "flash.h"
+#include "chipdrivers.h"
 #include "spi.h"
 
 #define ITE_SUPERIO_PORT1	0x2e