Add config option for AES encryption only

-Add config option for AES encyption only to config.h. Feature is
 disabled by default.
-Enable AES encrypt only feature in baremetal.h configuration
-Remove AES encypt only feature from full config
diff --git a/library/version_features.c b/library/version_features.c
index a708673..7a97d38 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -267,6 +267,9 @@
 #if defined(MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH)
     "MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH",
 #endif /* MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH */
+#if defined(MBEDTLS_AES_ONLY_ENCRYPT)
+    "MBEDTLS_AES_ONLY_ENCRYPT",
+#endif /* MBEDTLS_AES_ONLY_ENCRYPT */
 #if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY)
     "MBEDTLS_CAMELLIA_SMALL_MEMORY",
 #endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */