ci: remove fvp_r from coverity

Patch 74a3fb7c removed fvp_r but not the coverity build. Drop it too.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Icdf3d05ad2584e542767f2fcf36cc21c9c9963bb
1 file changed