morello: modify the build config

Support for Morello SoC platform has been
added and PLAT_FVP flag has been introduced
to differentiate between the two platforms.

Also, the boot flow has been changed and is now
more aligned to TBBR based one. These changes require
modifications in build config.

Also updated the coverity makefile.

Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>
Change-Id: I4baa73ee58cf239b047540d7e9a358866e62f0d3
5 files changed