Zephyr: define the Thumb-2 assembly macros and allow benchmark argument parsing

[dgarske]

Description

This PR fixes broken Thumb-2 assembly integration in the wolfSSL module and relaxes main argument constraints for bench flexibility.

Key Changes

• Fix Thumb-2 Assembly Config: Updated zephyr/user_settings.h to define WOLFSSL_ARMASM_THUMB2, WOLFSSL_ARMASM_NO_HW_CRYPTO, and WOLFSSL_ARM_ARCH=7 when CONFIG_WOLFCRYPT_ARMASM_THUMB2 is active. This aligns CMake build logic with C headers, resolving AArch32/Thumb-2 symbol mismatches and enabling Cortex-M support.
• Flexible Main Arguments: Guarded MAIN_NO_ARGS in settings.h with WOLFSSL_ZEPHYR_MAIN_ARGS so Zephyr apps building custom argv arrays can run targeted benchmark subsets.

Testing

Tested on Toradex i.MX95 SMARC on real-time M7 core with Zephyr.

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[Copilot]

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Pull request overview

Fixes Zephyr Thumb-2 wolfSSL integration by aligning C preprocessor settings with the Thumb-2 assembly objects being built, and makes Zephyr benchmark/test entry points optionally accept argv-style arguments for more flexible benchmark selection.

Changes:

• Define Thumb-2-related wolfSSL ARM assembly macros in Zephyr user settings when CONFIG_WOLFCRYPT_ARMASM_THUMB2 is enabled.
• Make MAIN_NO_ARGS optional on Zephyr via a new WOLFSSL_ZEPHYR_MAIN_ARGS opt-in.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
zephyr/user_settings.h	Adds Thumb-2-specific #defines so C code matches the Thumb-2 asm ports chosen by Zephyr’s build.
wolfssl/wolfcrypt/settings.h	Gates MAIN_NO_ARGS behind a Zephyr-specific opt-in to allow argument parsing in benchmark/test entry points.

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[github-actions]

MemBrowse Memory Report

No memory changes detected for:

• gcc-arm-cortex-m0plus
• gcc-arm-cortex-m3
• gcc-arm-cortex-m4
• gcc-arm-cortex-m4-baremetal
• gcc-arm-cortex-m4-crypto-only
• gcc-arm-cortex-m4-dtls13
• gcc-arm-cortex-m4-min-ecc
• gcc-arm-cortex-m4-openssl-compat
• gcc-arm-cortex-m4-pkcs7
• gcc-arm-cortex-m4-pq
• gcc-arm-cortex-m4-rsa-only
• gcc-arm-cortex-m4-sp-math
• gcc-arm-cortex-m4-tls12
• gcc-arm-cortex-m4-tls13
• gcc-arm-cortex-m7
• gcc-arm-cortex-m7-pq
• gcc-arm-cortex-m7-tls13
• linuxkm-pie
• linuxkm-standard
• stm32-sim-stm32h753