ASACORE-836 Expanded the MsgArg

The MsgArg test was expanded to cover empty arrays,
arrays of Maximum size, arrays greater than maximum
size.

Change-Id: I76abb3b952ced5ffd784db968a8091c725c935a2
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Merge "ASACORE-836 Expanded the MsgArg"