stv0991: enable saving enrironment in spi flash

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
diff --git a/include/configs/stv0991.h b/include/configs/stv0991.h
index 6379fd3..d498c12 100644
--- a/include/configs/stv0991.h
+++ b/include/configs/stv0991.h
@@ -23,7 +23,9 @@
 #define PHYS_SDRAM_1_SIZE			0x00198000
 
 #define CONFIG_ENV_SIZE				0x10000
-#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_SECT_SIZE			CONFIG_ENV_SIZE
+#define CONFIG_ENV_OFFSET			0x30000
 #define CONFIG_ENV_ADDR				\
 	(PHYS_SDRAM_1_SIZE - CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MAXARGS			16