defconfig: disable example rpmsg client/server spam

Change-Id: Iebfd9553bea603f51af057ba7b32c98754cdbdaa
rpmsg: Tuna uses older rpmsg channel name matching method

Change-Id: I14510362d05da56c5c923f483665f64f17ec3576
Merge pull request #1 from Hashcode/exp_finalizig

Tuna 3.0 kernel fixes