Test: Add maximum token size for attestation tests

This patch adds the token size define for attestation tests.
The size will be checked in the attestion service against the
platform dependent maximum size defined in region_defs.h to
see if the size is enough to hold the token.

Change-Id: Ic889b43b395518903734d755ead7037438001623
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
2 files changed