disk: convert CONFIG_MAC_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/sandbox_defconfig b/configs/sandbox_defconfig
index bd91e28..df1b7ab 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -50,6 +50,7 @@
 CONFIG_CMD_TPM=y
 CONFIG_CMD_TPM_TEST=y
 CONFIG_CMD_EXT4_WRITE=y
+CONFIG_MAC_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_OF_HOSTFILE=y
 CONFIG_NETCONSOLE=y