Merge "Migrate String8/16 from .string() to c_str()" into main am: 6bfa6a02...

Merge "Migrate String8/16 from .string() to c_str()" into main am: 6bfa6a02 am: 7b791783 am: 491d18b8 am: ce7281eb am: b1eb6a4b

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2703570



Change-Id: Iafccb3d37865375f2e985d210dd2bf87e4c195f8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>