Update remaining test cases to use key attributes

Finish updating the tests to use psa_key_attributes_t and
psa_import_key instead of psa_key_policy_t and
psa_import_key_to_handle.
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 3392f64..5b99b84 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -286,8 +286,8 @@
 PSA key policy set and get
 key_policy:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CBC_NO_PADDING
 
-Key policy initializers zero properly
-key_policy_init:
+Key attributes initializers zero properly
+key_attributes_init:
 
 PSA key policy: MAC, sign | verify
 depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C