Add support for GigaDevice GD25LQ32

This is the low power version (vendor,device = 0xc8,0x6016) of
GD25Q32 (0xc8,0x4016) which matches that of W25Q32 (0xef,0x4016) and
W25Q32DW (0xef,0x6016).  All their datasheets look pretty much the
same with respect to commands, erase blocks, etc.

Stolen from chromiumos:
http://git.chromium.org/gitweb/?p=chromiumos/third_party/flashrom.git;a=commitdiff;h=9a0051f0ba0b67af6f08e052c31cba3e9dbbbdbf

Corresponding to flashrom svn r1598.

Signed-off-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>

flashchips.c

@@ -4239,6 +4239,43 @@ const struct flashchip flashchips[] = {
 		.read		= spi_chip_read,
 	},
 
+	{
+		.vendor		= "GigaDevice",
+		.name		= "GD25LQ32",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= GIGADEVICE_ID,
+		.model_id	= GIGADEVICE_GD25LQ32,
+		.total_size	= 4096,
+		.page_size	= 256,
+		.feature_bits	= FEATURE_WRSR_WREN,
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 1024} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 128} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 64} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {4 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {1700, 1950},
+	},
+ 
 	{
 		.vendor		= "Hyundai",
 		.name		= "HY29F002T",

flashchips.h

@@ -305,6 +305,7 @@
 #define GIGADEVICE_GD25Q32	0x4016
 #define GIGADEVICE_GD25Q64	0x4017
 #define GIGADEVICE_GD25Q128	0x4018
+#define GIGADEVICE_GD25LQ32	0x6016
 
 #define HYUNDAI_ID		0xAD	/* Hyundai */
 #define HYUNDAI_HY29F400T	0x23	/* Same as HY29F400AT */