fix(fvp): increase the maximum size of Event Log

To make room for all image measurements using the
RME+SPM+TBB+MEASURED_BOOT test configuration, the Event Log's maximum
size has been significantly increased.

Change-Id: I0b9948dab893e14677bca0afa07167648a6c2729
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
1 file changed