Update mbed-client.lib to one merged in master

Janne Kiiskilä · Janne Kiiskilä · commit 5d6cf5dc47de · 2017-02-28T13:20:15.000+02:00
Update the lib reference to the mbed-client.lib that's supporting
CoAP separation and that's merged to the master (same content as
earlier though).
diff --git a/mbed-client.lib b/mbed-client.lib
@@ -1,2 +1,2 @@
-https://github.com/ARMmbed/mbed-client/#61c4b5fe20103823042bd1afe0afd305bff38afe
+https://github.com/ARMmbed/mbed-client/#52e65b46dff7935024e91ed045eadaab298149b6
 

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`		`-https://github.com/ARMmbed/mbed-client/#61c4b5fe20103823042bd1afe0afd305bff38afe`
	`1`	`+https://github.com/ARMmbed/mbed-client/#52e65b46dff7935024e91ed045eadaab298149b6`
`2`	`2`