fix deni

Dependencies:   TSI

Fork of TSI_sample by William Marsh

Revision:
2:e7b1f6275b63
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Feb 14 21:42:51 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#569159b784f70feaa32ce226aaca896fb83452f7