V10.4.3 LTS Patch 1

Changes between FreeRTOS V10.4.3 and FreeRTOS V10.4.3 LTS Patch 1 released September 10 2021

See https://www.FreeRTOS.org/FreeRTOS-V10.4.5.html

 + ARMv8-M secure-side port:  Tasks that call secure functions from the
   non-secure side of an ARMv8-M MCU (ARM Cortex-M23 and Cortex-M33) have two
   contexts – one on the non-secure side and one on the secure-side. Previous
   versions of the FreeRTOS ARMv8-M secure-side ports allocated the structures
   that reference secure-side contexts at run time.  Now the structures are
   allocated statically at compile time.  The change necessitates the
   introduction of the secureconfigMAX_SECURE_CONTEXTS configuration constant,
   which sets the number of statically allocated secure contexts.
   secureconfigMAX_SECURE_CONTEXTS defaults to 8 if left undefined.
   Applications that only use FreeRTOS code on the non-secure side, such as
   those running third-party code on the secure side, are not affected by
   this change.