Update esp32_image_parser.py

Implement of tenable#15

https://github.com/tenable/esp32_image_parser/pull/15/files

Author: aaronr8684

esp32_image_parser.py

@@ -154,7 +154,7 @@ def image2elf(filename, output_file, verbose=False):
     print_verbose(verbose, "\nAdding program headers")
     for (name, flags) in segments.items():
 
-        if (name == '.iram0.vectors'):
+        if (name == '.iram0.vectors') and '.iram0.text' in section_data:
             # combine these
             size = len(section_data['.iram0.vectors']['data']) + len(section_data['.iram0.text']['data'])
         else: