update

Dependencies:   mbed-STM32F103C8T6_new

Revision:
1:0fe432e5dfc4
Child:
2:f48b0967b6cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Apr 15 11:36:03 2020 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7