n1sdp: use n1sdp-tbb build config for coverity tests

As n1sdp bootflow has been moved to TBB based boot flow,
therefore use n1sdp-tbb build config for
tf-l2-coverity-misra-nominated tests.

Signed-off-by: sahil <sahil@arm.com>
Change-Id: I33d2e962a8ebdecf7886c1af6667b7fcb1c278cc
diff --git a/group/tf-l2-coverity-misra-nominated/n1sdp-default:coverity-tf-misra.diff b/group/tf-l2-coverity-misra-nominated/n1sdp-tbb:coverity-tf-misra.diff
similarity index 100%
rename from group/tf-l2-coverity-misra-nominated/n1sdp-default:coverity-tf-misra.diff
rename to group/tf-l2-coverity-misra-nominated/n1sdp-tbb:coverity-tf-misra.diff