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/ge_b850v3_defconfig b/configs/ge_b850v3_defconfig
index 7ce02d2..45e5fb1 100644
--- a/configs/ge_b850v3_defconfig
+++ b/configs/ge_b850v3_defconfig
@@ -23,6 +23,7 @@
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FS_GENERIC=y
+CONFIG_DOS_PARTITION=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_OF_LIBFDT=y