fix(tf-a): remove RAS build and coverity config for RD-N2 platform

Remove RAS TBB build configuration for RD-N2 platform from tf-l1-build-fvp
build group and coverity makefile. The functionality is being removed to
align with internal release branches.

Change-Id: I77a1ba6445dc80323e1ce49082b959cd10b9f38d
Signed-off-by: Jerry Wang <Jerry.Wang4@arm.com>
3 files changed