all.sh: exclude some extra slow test suites from psasim testing

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 0c1e9c9..cce51ad 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -6065,6 +6065,11 @@
 
     helper_psasim_server start
 
+    # psasim takes an extremely long execution time on some test suites so we
+    # exclude them from the list.
+    SKIP_TEST_SUITES="constant_time_hmac,lmots,lms"
+    export SKIP_TEST_SUITES
+
     msg "run test suites"
     make PSASIM=1 test