Proposed solution to lab 3

Revision:
5:1f36332ed463
Parent:
4:ebd00f94455a
--- a/mbed-os.lib	Thu Jan 31 13:53:15 2019 +0000
+++ b/mbed-os.lib	Thu Feb 06 08:11:53 2020 +0000
@@ -1,1 +1,1 @@
-https://github.com/ARMmbed/mbed-os/#a8d1d26fa76a27263cc9a69f65df45e3458517a5
+https://github.com/ARMmbed/mbed-os/#430e64fce8098fd5e54f6de32f3f029f35dc705f