Currently `current` picks 6.6.y kernel baseline, and `edge` picks
upstream's 6.12.y tree.
Make `current` pick the current SDK release (which, at the moment, is at
11.00.09 baseline), and make `edge` pick the latest un-released RC's
from TI's tree.
`current` is what most people will use, therefore it should be the same
as our official and tested release. `edge` can be either cutting-edge
(latest RC) or bleeding-edge (latest commit on cicd branch). For now,
keep it cutting-edge.
Signed-off-by: Suhaas Joshi <s-joshi@ti.com>