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/Sinovoip_BPI_M2_defconfig b/configs/Sinovoip_BPI_M2_defconfig
index 267aaf8..4f01c0a 100644
--- a/configs/Sinovoip_BPI_M2_defconfig
+++ b/configs/Sinovoip_BPI_M2_defconfig
@@ -11,6 +11,7 @@
 # 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_ETH_DESIGNWARE=y
 CONFIG_AXP_ALDO1_VOLT=3300
 CONFIG_AXP_ALDO2_VOLT=1800