fix false negative reported by check_names.py

The PSA_CRYPTO_C is excluded from typo check for the following
false negative report:

```
  > include/mbedtls/check_config.h:329: 'PSA_CRYPTO_C' looks like a typo. It
    was not found in any macros or any enums. If this is not a typo, put //no-
    check-names after it.
    |
329 |  * Note: ECJPAKE_C depends on MD_C || PSA_CRYPTO_C. */
    |                                       ^^^^^^^^^^^^

```

Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
diff --git a/tests/scripts/check_names.py b/tests/scripts/check_names.py
index 3c800d1..2ddf41e 100755
--- a/tests/scripts/check_names.py
+++ b/tests/scripts/check_names.py
@@ -847,7 +847,8 @@
             }
         typo_exclusion = re.compile(r"XXX|__|_$|^MBEDTLS_.*CONFIG_FILE$|"
                                     r"MBEDTLS_TEST_LIBTESTDRIVER*|"
-                                    r"PSA_CRYPTO_DRIVER_TEST")
+                                    r"PSA_CRYPTO_DRIVER_TEST|"
+                                    r"PSA_CRYPTO_C")
 
         for name_match in self.parse_result["mbed_psa_words"]:
             found = name_match.name in all_caps_names