[TF-M] IPC and clang

Hello,

I have noticed, that with adding the IPC feature to master branch, it were updated GCC linker files (#ifdef TFM_PSA_API sections), but ARMCLANG linker files are without any change. Does it mean that IPC was developed and tested only using GCC? Is there a plan to updated the armclang linker files?

Thanks, Andrej Butok