MPSoCBench 2.2

This release includes several revisions:
->Ensuring the use of /bin/bash shell to compile apps
->Adding .silent option in SPLASH makefiles
->Adding DVFS-SW in some applications
->Improving the NoC-AT XY-routing algorithm
->Adding Makefiles to the multi-software apps
->Fixing the noc_at power estimation

MPSoCBench 2.1