Modifying the HKCC for no readily apparent reason

Dependencies:   FastPWM3

Revision:
59:8aa304768360
Parent:
53:e9e1d70532ef
--- a/mbed-os.lib	Sat Feb 27 22:57:54 2021 -0800
+++ b/mbed-os.lib	Sun Mar 28 01:10:30 2021 -0700
@@ -1,1 +1,1 @@
-https://github.com/ARMmbed/mbed-os/#26606218ad9d1ee1c8781aa73774fd7ea3a7658e
+https://github.com/ARMmbed/mbed-os/#c73413893fb98aaaeda74513c981ac68adc8645d
\ No newline at end of file