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/README b/README
index 18e595b..f296834 100644
--- a/README
+++ b/README
@@ -114,6 +114,9 @@
 SST SST-49LF003A/B
 SST SST-49LF004A/B
 SST SST-49LF008A
+SST SST-49LF004C
+SST SST-49LF008C
+SST SST-49LF016C
 ST ST-M29F400BT
 ST ST-M29F040B
 SyncMOS S29C51001T/B
@@ -140,6 +143,7 @@
 Intel PIIX4/PIIX4E/PIIX4M
 NVIDIA CK804
 NVIDIA MCP51
+NVIDIA MCP55
 SiS 630
 SiS 5595
 VIA VT8231