scripts: support Sercomm partition tags

Sercomm uses a custom layout for partition tags:
	char part_name[32];
	char size[32];
	char part_version[32];
	char reserved[32];
	char rootfs_version[32];

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

scripts/sercomm-partition-tag.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+import argparse
+import os
+import struct
+
+def create_header(args, size):
+	header = struct.pack('32s32s32s32s32s',
+		args.part_name.encode('ascii'),
+		str(size).encode('ascii'),
+		args.part_version.encode('ascii'),
+		"".encode('ascii'),
+		args.rootfs_version.encode('ascii'))
+
+	return header
+
+def create_output(args):
+	in_st = os.stat(args.input_file)
+	in_size = in_st.st_size
+
+	header = create_header(args, in_size)
+	print(header)
+
+	in_f = open(args.input_file, 'r+b')
+	in_bytes = in_f.read(in_size)
+	in_f.close()
+
+	out_f = open(args.output_file, 'w+b')
+	out_f.write(header)
+	out_f.write(in_bytes)
+	out_f.close()
+
+def main():
+	global args
+
+	parser = argparse.ArgumentParser(description='')
+
+	parser.add_argument('--input-file',
+		dest='input_file',
+		action='store',
+		type=str,
+		help='Input file')
+
+	parser.add_argument('--output-file',
+		dest='output_file',
+		action='store',
+		type=str,
+		help='Output file')
+
+	parser.add_argument('--part-name',
+		dest='part_name',
+		action='store',
+		type=str,
+		help='Partition Name')
+
+	parser.add_argument('--part-version',
+		dest='part_version',
+		action='store',
+		type=str,
+		help='Partition Version')
+
+	parser.add_argument('--rootfs-version',
+		dest='rootfs_version',
+		action='store',
+		type=str,
+		help='RootFS lib version')
+
+	args = parser.parse_args()
+
+	if not args.rootfs_version:
+		args.rootfs_version = ""
+
+	if ((not args.input_file) or
+	    (not args.output_file) or
+	    (not args.part_name) or
+	    (not args.part_version)):
+		parser.print_help()
+
+	create_output(args)
+
+main()