Merge "Don't depend on String8 cast to C string [drm]" into main am:...

Merge "Don't depend on String8 cast to C string [drm]" into main am: 15272cf2 am: 19f00f89 am: da306554 am: cc11251f am: aab4d6c2

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2748300



Change-Id: If30852bc3894aed5f66ea15a893b7541e89629fd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>