Merge tag 'rneri-efi-next' of https://github.com/ricardon/efi into next

Pull EFI changes for v3.20 from Ricardo Neri, who kindly picked them up
while I was out on annual leave in December.

Updates included:

 *Rename the function efi_guid_unparse to reflect better its behavior. - Borislav Petkov

 *Update the EFI firmware Kconfig help with the URL of efibootmgr. - Peter Jones

Signed-off-by: Matt Fleming <matt.fleming@intel.com>

fs/efivarfs/super.c

@@ -140,7 +140,7 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 
 	name[len] = '-';
 
-	efi_guid_unparse(&entry->var.VendorGuid, name + len + 1);
+	efi_guid_to_str(&entry->var.VendorGuid, name + len + 1);
 
 	name[len + EFI_VARIABLE_GUID_LEN+1] = '\0';