Camera: Initial commit for reprocess

1) Create a new channel for reprocessing
2) Make changes in postprocessor to enable reprocessing
3) Pass metadata buffer to reprocess

Enable reprocessing path for WNR

Change-Id: I0afd20be5ed087f04eabc4324a413659d9b0e7f1
10 files changed
tree: 5bf9c0d104eebf1d5d9558ac9e965fba34bcdbdb
  1. camera/