CHROMIUM: ipu3-cio2: Add support for system resume/suspend

Previously, suspend-resume functionality was not implemented.
Add support for system suspend/resume functionality in cio2.

BUG=b:63984332
TEST=Test WF & UF camera functionality on Soraka

Change-Id: I6d7d4491127baf0f63e29882255a8737bd029a6e
Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: yuningpu <yuning.pu@intel.com>
Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/646869
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
2 files changed