ci: add encrypted image RAM load test

Signed-off-by: Fabio Utzig <utzig@apache.org>
diff --git a/.github/workflows/sim.yaml b/.github/workflows/sim.yaml
index a2fec92..df103ac 100644
--- a/.github/workflows/sim.yaml
+++ b/.github/workflows/sim.yaml
@@ -34,6 +34,7 @@
         - "sig-ecdsa-mbedtls enc-aes256-ec256 validate-primary-slot"
         - "sig-rsa validate-primary-slot overwrite-only downgrade-prevention"
         - "sig-rsa validate-primary-slot ram-load"
+        - "sig-rsa enc-rsa validate-primary-slot ram-load"
         - "sig-rsa validate-primary-slot direct-xip"
         - "sig-rsa validate-primary-slot ram-load multiimage"
         - "sig-rsa validate-primary-slot direct-xip multiimage"