Fix internal references in public documentation
Signed-off-by: Chris Jones <christopher.jones@arm.com>
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 8d98190..75dd84d 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -297,8 +297,10 @@
* \param[in] seed Buffer containing the seed value to inject.
* \param[in] seed_size Size of the \p seed buffer.
* The size of the seed in bytes must be greater
- * or equal to both MBEDTLS_ENTROPY_MIN_PLATFORM
- * and #MBEDTLS_ENTROPY_BLOCK_SIZE.
+ * or equal to both #MBEDTLS_ENTROPY_BLOCK_SIZE
+ * and the value of \c MBEDTLS_ENTROPY_MIN_PLATFORM
+ * in `library/entropy_poll.h` in the Mbed TLS source
+ * code.
* It must be less or equal to
* #MBEDTLS_ENTROPY_MAX_SEED_SIZE.
*