Support Macronix MX2512805D flash chip

Corresponding to flashrom svn r437 and coreboot v2 svn r4150.
Signed-off-by: Stephan Guilloux <stephan.guilloux@free.fr>
Acked-by: Peter Stuge <peter@stuge.se>

flash.h

@@ -283,6 +283,7 @@ extern struct flashchip flashchips[];
 #define MX_25L1605		0x2015	/* MX25L1605{,A,D} */
 #define MX_25L3205		0x2016	/* MX25L3205{,A} */
 #define MX_25L6405		0x2017	/* MX25L3205{,D} */
+#define MX_25L12805		0x2018	/* MX25L12805 */
 #define MX_25L1635D		0x2415
 #define MX_25L3235D		0x2416
 #define MX_29F002B		0x34

flashchips.c

@@ -853,6 +853,20 @@ struct flashchip flashchips[] = {
 		.read		= spi_chip_read,
 	},
 
+	{
+		.vendor		= "Macronix",
+		.name		= "MX25L12805",
+		.manufacture_id	= MX_ID,
+		.model_id	= MX_25L12805,
+		.total_size	= 16384,
+		.page_size	= 256,
+		.tested		= TEST_UNTESTED,
+		.probe		= probe_spi_rdid,
+		.erase		= spi_chip_erase_60_c7,
+		.write		= spi_chip_write,
+		.read		= spi_chip_read,
+	},
+
 	{
 		.vendor		= "Macronix",
 		.name		= "MX29F002B",