TF-A: Add build and coverity config for RD-N2 platform

Add TBB build configuration for RD-N2 platform to tf-l1-build-fvp build
group and include it in coverity makefile.

Change-Id: I35ac4ca4a2f3292ba02828581f28a764c19d5afe
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
diff --git a/script/tf-coverity/tf-cov-make b/script/tf-coverity/tf-cov-make
index 613330a..9cf52b5 100755
--- a/script/tf-coverity/tf-cov-make
+++ b/script/tf-coverity/tf-cov-make
@@ -204,6 +204,11 @@
 make $(common_flags) PLAT=rddanielxlr ${ARM_TBB_OPTIONS} CSS_SGI_CHIP_COUNT=4 all
 
 #
+# Reference Design Platform RD-N2
+#
+make $(common_flags) PLAT=rdn2 ${ARM_TBB_OPTIONS} all
+
+#
 # Neoverse N1 SDP platform
 #
 make $(common_flags) PLAT=n1sdp ${ARM_TBB_OPTIONS} all