RTX: Run unprivileged if uVisor is present

As priviliged threading is incompatible with uVisor

Author: Patater

rtos/rtx/TARGET_CORTEX_M/RTX_CM_lib.h

@@ -122,7 +122,11 @@ uint32_t const os_tickfreq   = OS_CLOCK;
 uint16_t const os_tickus_i   = OS_CLOCK/1000000;
 uint16_t const os_tickus_f   = (((uint64_t)(OS_CLOCK-1000000*(OS_CLOCK/1000000)))<<16)/1000000;
 uint32_t const os_trv        = OS_TRV;
+#if       defined(FEATURE_UVISOR) && defined(TARGET_UVISOR_SUPPORTED)
+uint8_t  const os_flags      = 0;
+#else  /* defined(FEATURE_UVISOR) && defined(TARGET_UVISOR_SUPPORTED) */
 uint8_t  const os_flags      = OS_RUNPRIV;
+#endif /* defined(FEATURE_UVISOR) && defined(TARGET_UVISOR_SUPPORTED) */
 
 /* Export following defines to uVision debugger. */
 __USED uint32_t const CMSIS_RTOS_API_Version = osCMSIS;