Add support for Spansion S25FL127S

This flash chip can be configured (one time) to use 64 KiB or 256 KiB sectors.
Additionally, in the 64 KiB mode it supports 16 4 KiB sub-sectors that can be
(one time) programmed to be on the top or bottom of the device. The sub-sectors
can be erased with the 0x20 opcode but because this opcode does not work
with the remaining sectors and flashrom can not cope with that the 0x20
opcode is not supported yet.

This patch adds two definitions, one for the 64 KiB and 256 KiB configuration
respectively. The device also shares the RDID with the various S25FL128
devices so we have to increase the maximum number of successfully probed
chips to 8.

The 64 KiB mode was tested on real hardware.

Corresponding to flashrom svn r1858.

Signed-off-by: Jernej Škrabec <jernej.skrabec@planet.si>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/flashchips.h b/flashchips.h
index fe8fc55..46de487 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -600,7 +600,7 @@
 #define SPANSION_S25FL016A	0x0214
 #define SPANSION_S25FL032A	0x0215	/* Same as S25FL032P, but the latter supports EDI and CFI */
 #define SPANSION_S25FL064A	0x0216	/* Same as S25FL064P, but the latter supports EDI and CFI */
-#define SPANSION_S25FL128	0x2018	/* Same ID for various S25FL128P, S25FL128S and S25FL129P (including dual-die S70FL256P) variants (EDI supported) */
+#define SPANSION_S25FL128	0x2018	/* Same ID for various S25FL127S, S25FL128P, S25FL128S and S25FL129P (including dual-die S70FL256P) variants (EDI supported) */
 #define SPANSION_S25FL256	0x0219
 #define SPANSION_S25FL512	0x0220
 #define SPANSION_S25FL204	0x4013