Add a CRC module to mbedtls and baremetal config

Add a new CRC module along with some tests for it.
The table and the CRC function body is generated using pycrc v0.9.2. 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/library/version_features.c b/library/version_features.c
index 38a7cee..7c5dae7 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -684,6 +684,9 @@
 #if defined(MBEDTLS_ERROR_C)
     "MBEDTLS_ERROR_C",
 #endif /* MBEDTLS_ERROR_C */
+#if defined(MBEDTLS_CRC_C)
+    "MBEDTLS_CRC_C",
+#endif /* MBEDTLS_CRC_C */
 #if defined(MBEDTLS_GCM_C)
     "MBEDTLS_GCM_C",
 #endif /* MBEDTLS_GCM_C */