Add a crypto config file for config-thread

This file consists of PSA symbols which are defined
if and only if the original config was set

Signed-off-by: Ryan Everett <ryan.everett@arm.com>
diff --git a/configs/crypto-config-thread.h b/configs/crypto-config-thread.h
new file mode 100644
index 0000000..7ea66da
--- /dev/null
+++ b/configs/crypto-config-thread.h
@@ -0,0 +1,46 @@
+/**
+ * \file crypto-config-thread.h
+ *
+ * \brief Minimal crypto configuration for using TLS as part of Thread
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+/**
+ * Minimal crypto configuration for using TLS as part of Thread
+ * http://threadgroup.org/
+ *
+ * Distinguishing features:
+ * - no RSA or classic DH, fully based on ECC
+ * - no X.509
+ * - support for experimental EC J-PAKE key exchange
+ *
+ * To be used in conjunction with configs/config-thread.h.
+ * See README.txt for usage instructions.
+ */
+
+#ifndef PSA_CRYPTO_CONFIG_H
+#define PSA_CRYPTO_CONFIG_H
+
+#define PSA_WANT_ALG_CCM                        1
+#define PSA_WANT_ALG_CMAC                       1
+#define PSA_WANT_ALG_JPAKE                      1
+#define PSA_WANT_ALG_SHA_256                    1
+#define PSA_WANT_ALG_TLS12_PRF                  1
+#define PSA_WANT_ALG_TLS12_PSK_TO_MS            1
+#define PSA_WANT_ALG_CCM_STAR_NO_TAG            1
+#define PSA_WANT_ALG_ECB_NO_PADDING             1
+#define PSA_WANT_ALG_HMAC                       1
+#define PSA_WANT_ALG_TLS12_ECJPAKE_TO_PMS       1
+#define PSA_WANT_ECC_SECP_R1_256                1
+
+#define PSA_WANT_KEY_TYPE_AES                   1
+#define PSA_WANT_KEY_TYPE_DERIVE                1
+#define PSA_WANT_KEY_TYPE_HMAC                  1
+#define PSA_WANT_KEY_TYPE_RAW_DATA              1
+#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC    1
+#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1
+#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE   1
+#endif /* PSA_CRYPTO_CONFIG_H */