Add support for Winbond W25X05CL

This commit adds support for the Winbond W25X05CL SPI flash chip.  The
Winbond W25X05CL is a 512Kib (64 KiB) SPI flash chip with 4KiB sectors.
I have tested this patch with a Bus Pirate (v3b) and an in-circuit W25X05CL
flash chip using a test clip. Reading, erasing, and writing all function
as expected.

Change-Id: I19c33c7da374f0263f30577a10a0f0f1afa4febc
Signed-off-by: Jacob Appelbaum <jacob@appelbaum.net>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/43573
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/70935
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/flashchips.h b/flashchips.h
index c58595d..f6e2588 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -917,6 +917,7 @@
 #define WINBOND_NEX_W25P80	0x2014
 #define WINBOND_NEX_W25P16	0x2015
 #define WINBOND_NEX_W25P32	0x2016
+#define WINBOND_NEX_W25X05	0x3010 /* W25X05CL */
 #define WINBOND_NEX_W25X10	0x3011
 #define WINBOND_NEX_W25X20	0x3012
 #define WINBOND_NEX_W25X40	0x3013