docs: Update App Utils programming guide docs for ESP32P4

Re-enable protocol and ota examples for ESP32P4

examples/system/ota/otatool/pytest_otatool.py

@@ -1,7 +1,5 @@
 # SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Unlicense OR CC0-1.0
-from __future__ import print_function
-
 import os
 import subprocess
 import sys
@@ -15,6 +13,8 @@ from pytest_embedded import Dut
 @pytest.mark.esp32c3
 @pytest.mark.esp32s3
 @pytest.mark.esp32c6
+@pytest.mark.esp32c2
+@pytest.mark.esp32p4
 @pytest.mark.generic
 def test_otatool_example(dut: Dut) -> None:
     # Verify factory firmware