Add support for the SST-49LF004C, SST-49LF008C, SST-49LF016C

Also add suport for NVIDIA MCP55.

Corresponding to flashrom svn r85 and coreboot v2 svn r2537.

Signed-off-by: Yinghai Lu <yinghai.lu@amd.com>
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Peter Stuge <peter@stuge.se>
diff --git a/sst49lfxxxc.h b/sst49lfxxxc.h
new file mode 100644
index 0000000..8768b1f
--- /dev/null
+++ b/sst49lfxxxc.h
@@ -0,0 +1,8 @@
+#ifndef __SST49LFXXXC_H__
+#define __SST49LFXXXC_H__
+
+extern int probe_49lfxxxc(struct flashchip *flash);
+extern int erase_49lfxxxc(struct flashchip *flash);
+extern int write_49lfxxxc(struct flashchip *flash, uint8_t *buf);
+
+#endif				/* !__SST49LFXXXC_H__ */