Camera: codegen doc update

Test: N/A. Doc update
Bug: 109666939
Bug: 113052379
Change-Id: I2bd176a7f5ada755c8a79201d142a98131e2e82c
Merged-In: I2bd176a7f5ada755c8a79201d142a98131e2e82c
(cherry picked from commit 6c73e409fccf4b2e1b4a5f4bac2eea1c07480e16)
3 files changed