Fix typos in comments

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/suites/test_suite_psa_crypto_storage_format.function b/tests/suites/test_suite_psa_crypto_storage_format.function
index 662ad94..76cfe57 100644
--- a/tests/suites/test_suite_psa_crypto_storage_format.function
+++ b/tests/suites/test_suite_psa_crypto_storage_format.function
@@ -167,7 +167,7 @@
 
     /* This is the current storage format. Test that we know exactly how
      * the key is stored. The stability of the test data in future
-     * versions of the Mbed TLS will guarantee that future versions
+     * versions of Mbed TLS will guarantee that future versions
      * can read back what this version wrote. */
     TEST_ASSERT( test_written_key( &attributes, material,
                                    uid, representation ) );
@@ -211,7 +211,7 @@
 
     /* Test that we can use a key with the given representation. This
      * guarantees backward compatibility with keys that were stored by
-     * past versionf of Mbed TLS. */
+     * past versions of Mbed TLS. */
     TEST_ASSERT( test_read_key( &attributes, material,
                                 uid, representation, exercise ) );