fixes for Android res/raw folder (no subfolders.)

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
OT wasn't building when keyring configured on.

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #42 from FellowTraveler/master

Fix for compiling OT when Keyring is configured ON.