mtd: spinand: micron: Describe the SPI NAND device MT29F2G01ABAGD

Add the SPI NAND device MT29F2G01ABAGD series number, size and voltage
details as a comment.

Signed-off-by: Shivamurthy Shastri <sshivamurthy@micron.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c
index c37b152..93b0e2c 100644
--- a/drivers/mtd/nand/spi/micron.c
+++ b/drivers/mtd/nand/spi/micron.c
@@ -95,6 +95,7 @@
 }
 
 static const struct spinand_info micron_spinand_table[] = {
+	/* M79A 2Gb 3.3V */
 	SPINAND_INFO("MT29F2G01ABAGD", 0x24,
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 2, 1, 1),
 		     NAND_ECCREQ(8, 512),