md: move PSA conversion functions from md_psa.h to psa_util.h

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h
index 5f6a053..249b8d4 100644
--- a/include/mbedtls/psa_util.h
+++ b/include/mbedtls/psa_util.h
@@ -148,6 +148,43 @@
                                               int bits_is_sloppy);
 #endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
 
+/**
+ * \brief           This function returns the PSA algorithm identifier
+ *                  associated with the given digest type.
+ *
+ * \param md_type   The type of digest to search for. Must not be NONE.
+ *
+ * \warning         If \p md_type is \c MBEDTLS_MD_NONE, this function will
+ *                  not return \c PSA_ALG_NONE, but an invalid algorithm.
+ *
+ * \warning         This function does not check if the algorithm is
+ *                  supported, it always returns the corresponding identifier.
+ *
+ * \return          The PSA algorithm identifier associated with \p md_type,
+ *                  regardless of whether it is supported or not.
+ */
+static inline psa_algorithm_t mbedtls_md_psa_alg_from_type(mbedtls_md_type_t md_type)
+{
+    return PSA_ALG_CATEGORY_HASH | (psa_algorithm_t) md_type;
+}
+
+/**
+ * \brief           This function returns the given digest type
+ *                  associated with the PSA algorithm identifier.
+ *
+ * \param psa_alg   The PSA algorithm identifier to search for.
+ *
+ * \warning         This function does not check if the algorithm is
+ *                  supported, it always returns the corresponding identifier.
+ *
+ * \return          The MD type associated with \p psa_alg,
+ *                  regardless of whether it is supported or not.
+ */
+static inline mbedtls_md_type_t mbedtls_md_type_from_psa_alg(psa_algorithm_t psa_alg)
+{
+    return (mbedtls_md_type_t) (psa_alg & PSA_ALG_HASH_MASK);
+}
+
 /**@}*/
 
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/md_psa.h b/library/md_psa.h
index b201263..028ba24 100644
--- a/library/md_psa.h
+++ b/library/md_psa.h
@@ -15,43 +15,6 @@
 #include "mbedtls/md.h"
 #include "psa/crypto.h"
 
-/**
- * \brief           This function returns the PSA algorithm identifier
- *                  associated with the given digest type.
- *
- * \param md_type   The type of digest to search for. Must not be NONE.
- *
- * \warning         If \p md_type is \c MBEDTLS_MD_NONE, this function will
- *                  not return \c PSA_ALG_NONE, but an invalid algorithm.
- *
- * \warning         This function does not check if the algorithm is
- *                  supported, it always returns the corresponding identifier.
- *
- * \return          The PSA algorithm identifier associated with \p md_type,
- *                  regardless of whether it is supported or not.
- */
-static inline psa_algorithm_t mbedtls_md_psa_alg_from_type(mbedtls_md_type_t md_type)
-{
-    return PSA_ALG_CATEGORY_HASH | (psa_algorithm_t) md_type;
-}
-
-/**
- * \brief           This function returns the given digest type
- *                  associated with the PSA algorithm identifier.
- *
- * \param psa_alg   The PSA algorithm identifier to search for.
- *
- * \warning         This function does not check if the algorithm is
- *                  supported, it always returns the corresponding identifier.
- *
- * \return          The MD type associated with \p psa_alg,
- *                  regardless of whether it is supported or not.
- */
-static inline mbedtls_md_type_t mbedtls_md_type_from_psa_alg(psa_algorithm_t psa_alg)
-{
-    return (mbedtls_md_type_t) (psa_alg & PSA_ALG_HASH_MASK);
-}
-
 /** Convert PSA status to MD error code.
  *
  * \param status    PSA status.