Use String8/16 c_str am: e97a1ec320 am: d295199fdb am: 51460f607c am: 1beedfe9e1

Original change: https://android-review.googlesource.com/c/platform/system/libhwbinder/+/2704655

Change-Id: Ie028c2f57e13a1186a9e01232249fa1c95fa9e3a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>