disk: convert CONFIG_EFI_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/highbank_defconfig b/configs/highbank_defconfig
index 8fd74ef..a79d4c9 100644
--- a/configs/highbank_defconfig
+++ b/configs/highbank_defconfig
@@ -21,4 +21,5 @@
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_ISO_PARTITION=y
+CONFIG_EFI_PARTITION=y
 CONFIG_OF_LIBFDT=y