update threadx/netxduo (#239)

* update threadx/netxduo

* update STM netxduo fork

Author: ryanwinter

STMicroelectronics/STM32L4_L4+/lib/netxduo/CMakeLists.txt

@@ -420,6 +420,7 @@ set(SOURCES
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_extended_key_usage_extension_parse.c
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_extension_find.c
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_find_certificate_methods.c
+    ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_find_curve_method.c
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_free_certificate_get.c
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_key_usage_extension_parse.c
     ${CORE_LIB_DIR}/netxduo/nx_secure/src/nx_secure_x509_local_certificate_find.c

STMicroelectronics/STM32L4_L4+/lib/netxduo/common/nx_api.h

@@ -3835,6 +3835,9 @@ VOID _nx_ip_driver_link_status_event(NX_IP *ip_ptr, UINT interface_index);
 
 /* Utility functions.  */
 UINT _nx_utility_string_length_check(CHAR *input_string, UINT *string_length, UINT max_string_length);
+UINT _nx_utility_string_to_uint(CHAR *input_string, UINT string_length, UINT *number);
+UINT _nx_utility_base64_encode(UCHAR *name, UINT name_size, UCHAR *base64name, UINT base64name_size, UINT *bytes_copied);
+UINT _nx_utility_base64_decode(UCHAR *base64name, UINT base64name_size, UCHAR *name, UINT name_size, UINT *bytes_copied);
 
 /* Determine if a C++ compiler is being used.  If so, complete the standard
    C conditional started above.  */