New test suite for random generation

Test random generation as a whole. This is different from
test_suite_*_drbg and test_suite_entropy, which respectively test PRNG
modules and entropy collection.

Start with basic tests: good-case tests, and do it twice and compare
the results to validate that entropy collection doesn't repeat itself.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index f8ce925..97369b2 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -150,6 +150,7 @@
 add_test_suite(psa_crypto_se_driver_hal_mocks)
 add_test_suite(psa_crypto_slot_management)
 add_test_suite(psa_its)
+add_test_suite(random)
 add_test_suite(rsa)
 add_test_suite(shax)
 add_test_suite(ssl)