kconfig: introduced CONFIG_IDF_ENV_BRINGUP for new chip bringup usage

Kconfig

@@ -11,9 +11,23 @@ mainmenu "Espressif IoT Development Framework Configuration"
         default "y"
 
     config IDF_ENV_FPGA
-        # This option is for internal use only
         bool
         option env="IDF_ENV_FPGA"
+        help
+            - This option is for internal use only.
+            - Enabling this option will help enable all FPGA support so as to
+              run ESP-IDF on an FPGA. This can help reproduce some issues that
+              only happens on FPGA condition, or when you have to burn some
+              efuses multiple times.
+
+    config IDF_ENV_BRINGUP
+        bool
+        default "y" if IDF_TARGET_ESP32P4
+        help
+            - This option is ONLY used when doing new chip bringup.
+            - This option will only enable necessary hw / sw settings for running
+              a hello_world application.
+
 
     config IDF_CI_BUILD
         bool