interpreters/python: support build without network

[fdcavalcanti]

Summary

• interpreters/python: support build without network

Adds options to support building when CONFIG_NET is not set.
This allows building Python for boards that do not have networking support.

Impact

Impact on user: No.

Impact on build: Allows building if CONFIG_NET is not set.

Impact on hardware: No.

Impact on documentation: No.

Impact on security: No.

Impact on compatibility: No.

Testing

Tested on M5 Stack ESP32-P4 Tab 5 board which does not have ethernet and Wi-Fi is not yet supported.
This requires changes on NuttX of this MR.

Building

• ./tools/configure.sh -S esp32p4-tab5:python
• Make and flash

Results

Device boots and Python is available.

*** Booting NuttX ***
tcm: lma 0x00002020 vma 0x30100000 len 0x68     (104)
dram: lma 0x00002090 vma 0x4ff00000 len 0xa5ec   (42476)
dram: lma 0x0000c684 vma 0x4ff40000 len 0x22c2c  (142380)
padd: lma 0x0002f2c8 vma 0x00000000 len 0xd50    (3408)
imap: lma 0x00030020 vma 0x40200020 len 0xc29060 (12750944)
padd: lma 0x00c59088 vma 0x00000000 len 0x6f70   (28528)
imap: lma 0x00c60000 vma 0x40000000 len 0x1f315c (2044252)
total segments stored 7
WARNING: NuttX supports ESP32-P4 chip revision > v3.0 (chip revision is v1.3).
Ignoring this error and continuing because `CONFIG_ESP32P4_SELECTS_REV_LESS_V3` is set...
THIS MAY NOT WORK! DON'T USE THIS CHIP IN PRODUCTION!

NuttShell (NSH) NuttX-10.4.0
nsh> python
Python 3.13.0 (main, Jul 15 2026, 14:31:34) [GCC 14.2.0] on nuttx
Type "help", "copyright", "credits" or "license" for more information.
>>> print("Hello NuttX!")
Hello NuttX!
>>>