mtd: spi-nor: Parse SFDP SCCR Map

Parse SCCR 22nd dword and check DTR Octal Mode Enable
Volatile bit for Octal DTR enable

Signed-off-by: JaimeLiao <jaimeliao.tw@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

include/linux/mtd/spi-nor.h

@@ -290,6 +290,7 @@ enum spi_nor_option_flags {
 	SNOR_F_USE_CLSR		= BIT(5),
 	SNOR_F_BROKEN_RESET	= BIT(6),
 	SNOR_F_SOFT_RESET	= BIT(7),
+	SNOR_F_IO_MODE_EN_VOLATILE = BIT(8),
 };
 
 struct spi_nor;