core: sp: Allow to embed binary SPs to OP-TEE binary

If the ELF header is not found in the file, then assume it's a binary
format SP.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/scripts/ts_bin_to_c.py b/scripts/ts_bin_to_c.py
index d004736..f150207 100755
--- a/scripts/ts_bin_to_c.py
+++ b/scripts/ts_bin_to_c.py
@@ -2,12 +2,12 @@
 # SPDX-License-Identifier: BSD-2-Clause
 #
 # Copyright (c) 2017, 2020, Linaro Limited
-# Copyright (c) 2020-2022, Arm Limited.
+# Copyright (c) 2020-2023, Arm Limited.
 #
 
 import argparse
 import array
-from elftools.elf.elffile import ELFFile
+from elftools.elf.elffile import ELFFile, ELFError
 import os
 import re
 import struct
@@ -74,7 +74,11 @@
 
 def sp_get_flags(sp_f):
     with open(sp_f, 'rb') as f:
-        elffile = ELFFile(f)
+        try:
+            elffile = ELFFile(f)
+        except ELFError:
+            # Binary format SP, return zero flags
+            return 0
 
         for s in elffile.iter_sections():
             if get_name(s) == '.sp_head':