disk: convert CONFIG_ISO_PARTITION to Kconfig

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
diff --git a/configs/mvebu_db-88f8040_defconfig b/configs/mvebu_db-88f8040_defconfig
index 75d5121..2b11991 100644
--- a/configs/mvebu_db-88f8040_defconfig
+++ b/configs/mvebu_db-88f8040_defconfig
@@ -33,6 +33,7 @@
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_MAC_PARTITION=y
+CONFIG_ISO_PARTITION=y
 CONFIG_BLOCK_CACHE=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_MVTWSI=y