Measured Boot: Strip null char before IPC

TF-A had made a similar change a while back. In order to get
the test suite running inside of TF-A's BL31 TF-M must have compatible
behavior. This trims the null both in the interface and in the
test suite data.

Change-Id: I6a04d8acbb96b1431cdc84ba7328557f1ac38216
Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
2 files changed