Add support for Nucleo-F446RE

Dependencies:   mbed

Revision:
15:916032fc76c0
Parent:
14:c7251480feb9
--- a/SX1276Lib.lib	Wed Feb 17 09:28:29 2016 +0000
+++ b/SX1276Lib.lib	Wed May 18 04:36:51 2016 +0000
@@ -1,1 +1,1 @@
-http://developer.mbed.org/teams/Semtech/code/SX1276Lib/#7f3aab69cca9
+https://developer.mbed.org/users/rba90/code/SX1276Lib/#264ca4ff8c5a