reduce critical path in mkMemSlaveEngine

Change-Id: I1f09a818f0ba8520556000912116ac35df625ec1
renamed foo and bar in CtrlMux

Change-Id: I03dea4ab18d1c652d4014de6e7bfd556f76c78bd
remove redundant FIFOs, use MKFIFO1 instead of mkSizedFIFO(1)

Change-Id: I9d154d9f20bdd22cb760fa7737a1d3cdbb2c8701
reduce capacity of MemMasterEngine completionMimo

Change-Id: I9dd33c9157ed1f96b65d3a76e77a71ca64396f06