Add STM32L562E-DK board

Build TF-M firmware for STM32L562E-DK board

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I3324e42ba8ca72e1c13348444b4e80ae14579fab
diff --git a/script/tf-coverity/cov-makefile b/script/tf-coverity/cov-makefile
index 1ca296d..197b8d0 100644
--- a/script/tf-coverity/cov-makefile
+++ b/script/tf-coverity/cov-makefile
@@ -16,7 +16,8 @@
 target_platforms := cypress/psoc64 \
                     arm/mps2/an519 arm/mps2/an521 \
                     arm/mps3/an524 \
-                    arm/musca_b1/sse_200 arm/musca_s1
+                    arm/musca_b1/sse_200 arm/musca_s1 \
+                    stm/stm32l562e_dk
 
 tf_m := trusted-firmware-m