fix(tools): idf.py: fix detection of raw core dump file

When idf.py coredump-debug is launched with '--core' argument, it
tries to determine the file format (raw, elf, b64). To detect the
'raw' core dump the code checked if the version word matched one of
the known values.
However, the version word also contains the chip ID in the high
half-word, so the check failed for anything other than the ESP32.
The detection of core file format has been moved to esp-coredump
package in version 1.9.0, including the fix for chip ID.

Reported in #10852

tools/idf_py_actions/debug_ext.py

@@ -9,7 +9,6 @@
 import sys
 import threading
 import time
-from base64 import b64decode
 from textwrap import indent
 from threading import Thread
 from typing import Any, Dict, List, Optional, Union
@@ -172,12 +171,10 @@ def _get_espcoredump_instance(ctx: Context,
         if extra_gdbinit_file:
             espcoredump_kwargs['extra_gdbinit_file'] = extra_gdbinit_file
 
-        core_format = None
-
         if core:
             espcoredump_kwargs['core'] = core
+            espcoredump_kwargs['core_format'] = 'auto'
             espcoredump_kwargs['chip'] = get_sdkconfig_value(project_desc['config_file'], 'CONFIG_IDF_TARGET')
-            core_format = get_core_file_format(core)
         elif coredump_to_flash:
             #  If the core dump is read from flash, we don't need to specify the --core-format argument at all.
             #  The format will be determined automatically
@@ -191,9 +188,6 @@ def _get_espcoredump_instance(ctx: Context,
         espcoredump_kwargs['parttable_off'] = get_sdkconfig_value(project_desc['config_file'],
                                                                   'CONFIG_PARTITION_TABLE_OFFSET')
 
-        if core_format:
-            espcoredump_kwargs['core_format'] = core_format
-
         if save_core:
             espcoredump_kwargs['save_core'] = save_core
 
@@ -212,34 +206,6 @@ def _get_espcoredump_instance(ctx: Context,
                 raise
         return coredump
 
-    def get_core_file_format(core_file: str) -> str:
-        bin_v1 = 1
-        bin_v2 = 2
-        elf_crc32 = 256
-        elf_sha256 = 257
-
-        with open(core_file, 'rb') as f:
-            coredump_bytes = f.read(16)
-
-            if coredump_bytes.startswith(b'\x7fELF'):
-                return 'elf'
-
-            core_version = int.from_bytes(coredump_bytes[4:7], 'little')
-            if core_version in [bin_v1, bin_v2, elf_crc32, elf_sha256]:
-                #  esp-coredump will determine automatically the core format (ELF or BIN)
-                return 'raw'
-        with open(core_file) as c:
-            coredump_str = c.read()
-            try:
-                b64decode(coredump_str)
-            except Exception:
-                print('The format of the provided core-file is not recognized. '
-                      'Please ensure that the core-format matches one of the following: ELF (“elf”), '
-                      'raw (raw) or base64-encoded (b64) binary')
-                sys.exit(1)
-            else:
-                return 'b64'
-
     def is_gdb_with_python(gdb: str) -> bool:
         # execute simple python command to check is it supported
         return subprocess.run([gdb, '--batch-silent', '--ex', 'python import os'],