add s4/s905y4 s4/s805x2 and s4/s805x2g signed binary.

Change-Id: I900a064b90d1d507c2a4f0838cec50f777159dbb
3 files changed
tree: f3e4c6df7884632edb480b3957af4e4decf9afb8
  1. s4/
  2. sc2/
  3. t7/