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/boston32r2el_defconfig b/configs/boston32r2el_defconfig
index 8f8cb5f..367f0d8 100644
--- a/configs/boston32r2el_defconfig
+++ b/configs/boston32r2el_defconfig
@@ -28,6 +28,7 @@
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
+# CONFIG_DOS_PARTITION is not set
 CONFIG_OF_EMBED=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_CLK=y