flashchips: Add GigaDevice GD25LB256E 1.8V part

This chip has WPS and DC bits in unsupported configuration registers.
Hence we can't support QPI and block protection for now.

Datasheet used:
https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20230627/DS-00513-GD25LB256E-Rev2.0.pdf
https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20241211/DS-00573-GD25LR256E-Rev1.6.pdf

Change-Id: I0dab32efab33d34a4c29ca84a5e1e1fe0b408e07
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/304
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/include/flashchips.h b/include/flashchips.h
index 7871077..84296bf 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -416,6 +416,7 @@
 #define GIGADEVICE_GD25LQ64	0x6017	/* Same as GD25LQ64B (which is faster) */
 #define GIGADEVICE_GD25LQ128CD	0x6018
 #define GIGADEVICE_GD25LQ256D	0x6019	/* Same as GD25L[EB]256D/GD25LQ255E/GD25L[QE]256H/GD25LB256F/GD25LE255E */
+#define GIGADEVICE_GD25LB256E	0x6719	/* Same as GD25LR256E */
 #define GIGADEVICE_GD25LR512ME	0x671a
 #define GIGADEVICE_GD25WQ80E	0x6514
 #define GIGADEVICE_GD29GL064CAB	0x7E0601