Camera3: Add support channel when there is only one raw stream

This makes sure that in the case of single raw stream:
1. Metadata and statistics can be collected for raw result.
2. Works around a mm-camera daemon limitation where single raw
stream cannot be supported.

Bug: 14014546
Change-Id: I7a3787b8190f7d01d3dc2c43f8ab174a855ccc16
4 files changed
tree: 49ec4c4da44bfdaad01e1e02bf53177302fb3cb2
  1. camera/