disk: convert CONFIG_DOS_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/Marsboard_A10_defconfig b/configs/Marsboard_A10_defconfig
index 0d381ff..0de4834 100644
--- a/configs/Marsboard_A10_defconfig
+++ b/configs/Marsboard_A10_defconfig
@@ -9,5 +9,6 @@
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_CMD_FPGA is not set
+# CONFIG_SPL_DOS_PARTITION is not set
 CONFIG_SUNXI_NO_PMIC=y
 CONFIG_USB_EHCI_HCD=y