NuMaker mbed OS v5.x LoRaWAN

Revision:
0:895bbd4e6398
diff -r 000000000000 -r 895bbd4e6398 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Tue Sep 01 21:06:51 2020 +0800
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#6a244d7adffc0e93872cfc880e539ee11bbc6002