Camera: Rename CameraActionEvent duration

Rename "duration" field to correspond with the
actual time unit.

Bug: 139439353
Test: Successful build
Change-Id: I3e9b3ac5778d6fa4b6de35079743bdf6e85b7560
1 file changed
tree: b19532dec094ca1acee1c1ae870ac8762e57d19e
  1. atom_field_options.proto
  2. atoms.proto