Replace hash_info_get_type with MD function

Mostly a search and replace with just two manual changes:

1. Now PK and TLS need MD light, so auto-enable it.
2. Remove the old function in hash_info.[ch]

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/suites/test_suite_pk.function b/tests/suites/test_suite_pk.function
index 65b0c03..65aa593 100644
--- a/tests/suites/test_suite_pk.function
+++ b/tests/suites/test_suite_pk.function
@@ -1448,7 +1448,7 @@
     size_t sig_len;
     unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
     unsigned char hash[PSA_HASH_MAX_SIZE];
-    size_t hash_len = mbedtls_hash_info_get_size(md_alg);
+    size_t hash_len = mbedtls_md_get_size_from_type(md_alg);
     void const *options = NULL;
     mbedtls_pk_rsassa_pss_options rsassa_pss_options;
     memset(hash, 0x2a, sizeof(hash));