Use String8/16 c_str [camera udc-dev-plus-aosp] am: 67b5ebcb am: 2681a72b am: 233326dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/24604280



Change-Id: I6b8ce0a1c403df8989146377852e552f3ff75138
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>