feat(npcm845x): added scripts to test Nuvoton npcm845x chip

TF-A commit: 71b6e22 (feat(plat): added support to Nuvoton npcm845x chip)

Signed-off-by: Margarita Glushkin <rutigl@gmail.com>
Change-Id: I6cfe888d38c4df3dba9e70d1824433c1a8d3eded
diff --git a/script/tf-coverity/tf-cov-make b/script/tf-coverity/tf-cov-make
index 794ebae..d698a4a 100755
--- a/script/tf-coverity/tf-cov-make
+++ b/script/tf-coverity/tf-cov-make
@@ -735,4 +735,7 @@
 # Platforms from Aspeed
 clean_build PLAT=ast2700 $(common_flags) SPD=opteed
 
+# Nuvoton npcm845x platform
+make PLAT=npcm845x $(common_flags) all SPD=opteed
+
 cd ..