Initial Commit
shieldtablet: Compile kernel with linaro 4.8
shieldtablet: Bluedroid vendor config

The nvidia shield tablet requires a special configuration for
enabling bluetooth.
shieldtablet: use prebuilt bt blob for now

currently there's a commit that isn't idea to merge from nvidia
shieldtablet: Wifi sync with stock confgiuration
Merge remote-tracking branch 'tr/kk44' into HEAD

linear history is srsbznz

Change-Id: I28a33efbe200e80fad99fb15357aa2de2e0d2750