ARM: dts: atlas7: add a GPIO key for rearview button
ARM: dts: atlas7: add a GPIO key for rearview button

Touching this key will trigger a camera event for rearview.

Signed-off-by: Andy Sun <c5c6fd4cc5e2615cffd4efa2a83fa4b1f5a8fde8@csr.com>
Signed-off-by: Barry Song <a856445693a373abed3e477bd705f7011cbd8a1d@csr.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs