add it8500 support

programmer.h

Index: programmer.h
diff --git a/programmer.h b/programmer.h
index b8b7d049fd2bf19427225b7ce4ddacede42e2188..bbe24f948a88647b3d850b63fa7c0b8136711bf8 100644
--- a/programmer.h
+++ b/programmer.h
@@ -472,6 +472,7 @@ enum spi_controller {
 #if defined(__i386__) || defined(__x86_64__)
 	SPI_CONTROLLER_ICH7,
 	SPI_CONTROLLER_ICH9,
+	SPI_CONTROLLER_IT85XX,
 	SPI_CONTROLLER_IT87XX,
 	SPI_CONTROLLER_SB600,
 	SPI_CONTROLLER_VIA,
@@ -526,6 +527,14 @@ int ich_spi_write_256(struct flashchip *flash, uint8_t * buf, int start, int len
 int ich_spi_send_multicommand(struct spi_command *cmds);
 #endif
 
+/* it85spi.c */
+struct superio probe_superio_ite85xx(void);
+int it85xx_spi_init(void);
+int it85xx_shutdown(void);
+int it85xx_probe_spi_flash(const char *name);
+int it85xx_spi_send_command(unsigned int writecnt, unsigned int readcnt,
+			const unsigned char *writearr, unsigned char *readarr);
+
 /* it87spi.c */
 void enter_conf_mode_ite(uint16_t port);
 void exit_conf_mode_ite(uint16_t port);