tests: crypto: move the tinycrypt_hmac_prng test to new ztest API

Migrate the testsuite tests/crypto/tinycrypt_hmac_prng to the new
ztest API.

Signed-off-by: Enjia Mai <enjia.mai@intel.com>

tests/crypto/tinycrypt_hmac_prng/prj.conf

@@ -4,3 +4,4 @@ CONFIG_TINYCRYPT_SHA256=y
 CONFIG_TINYCRYPT_SHA256_HMAC=y
 CONFIG_TINYCRYPT_SHA256_HMAC_PRNG=y
 CONFIG_ZTEST=y
+CONFIG_ZTEST_NEW_API=y

tests/crypto/tinycrypt_hmac_prng/src/hmac_prng.c

@@ -7544,7 +7544,7 @@ unsigned int test_120(void)
 }
 
 
-void test_hmac_prng(void)
+ZTEST(hmac_prng_fn, test_hmac_prng)
 {
 	unsigned int result = TC_PASS;
 
@@ -7913,3 +7913,5 @@ void test_hmac_prng(void)
 	TC_PRINT("\n");
 	TC_PRINT("All HMAC-PRNG tests succeeded!\n");
 }
+
+ZTEST_SUITE(hmac_prng_fn, NULL, NULL, NULL, NULL, NULL);

tests/crypto/tinycrypt_hmac_prng/src/main.c

@@ -1,16 +0,0 @@
-/*
- * Copyright (c) 2017 Intel Corporation
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include <zephyr/ztest.h>
-extern void test_hmac_prng(void);
-
-/**test case main entry*/
-void test_main(void)
-{
-	ztest_test_suite(test_hmac_prng_fn,
-		ztest_unit_test(test_hmac_prng));
-	ztest_run_test_suite(test_hmac_prng_fn);
-}