Fix Xtensa ESP32 FreeRTOS build break from interrupt-priority macro mismatch

[Copilot]

ESP32/Xtensa builds failed because configMAX_SYSCALL_INTERRUPT_PRIORITY was set to the generic fallback (0) in FreeRTOSConfig.h and later redefined by the Xtensa port, causing an inconsistent configuration path that surfaced as assembler errors in xtensa_context.S.

• Root cause alignment (Xtensa arch config)

  • Updated config/arch/xtensa_esp32/FreeRTOSConfigArch.h to define Xtensa-required interrupt priority macros before the generic defaults apply.

• Macro definitions added

  • Added guarded definitions for:
    • configMAX_SYSCALL_INTERRUPT_PRIORITY → XCHAL_EXCM_LEVEL
    • configMAX_API_CALL_INTERRUPT_PRIORITY → configMAX_SYSCALL_INTERRUPT_PRIORITY

• Impact

  • Keeps Xtensa interrupt-priority configuration consistent across FreeRTOSConfig.h and the Xtensa port headers, eliminating the conflicting macro path that led to the build failure.

#ifndef configMAX_SYSCALL_INTERRUPT_PRIORITY
    #define configMAX_SYSCALL_INTERRUPT_PRIORITY    XCHAL_EXCM_LEVEL
#endif

#ifndef configMAX_API_CALL_INTERRUPT_PRIORITY
    #define configMAX_API_CALL_INTERRUPT_PRIORITY    configMAX_SYSCALL_INTERRUPT_PRIORITY
#endif