RTC auf true

Revision:
2:7aab896b1a3b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/802_15_4_RF/mcr20a-rf-driver/mbed_lib.json	Wed Mar 13 11:03:24 2019 +0000
@@ -0,0 +1,9 @@
+{
+    "name": "mcr20a",
+    "config": {
+        "provide-default": {
+            "help": "Provide default NanostackRfpy. [true/false]",
+            "value": false
+        }
+    }
+}
\ No newline at end of file