Squashed 'features/frameworks/mbed-client-randlib/' changes from 3955b95..bec82e2

bec82e2 Merge pull request #12 from ARMmbed/sync_with_MbedOS
7a85429 (via Mbed OS) Add missing mbed_lib.json for frameworks and nanostack
a493a52 (via Mbed OS) Remove unused yotta module metadata

git-subtree-dir: features/frameworks/mbed-client-randlib
git-subtree-split: bec82e21f05df2f99c14ebb9b2bee2a129d33cdc

Author: Arto Kinnunen

mbed_lib.json

@@ -0,0 +1,3 @@
+{
+    "name": "mbed-client-randlib"
+}