[automerger skipped] Stop using varargs in libkeyutils. am: 8f4bb45a am:...

[automerger skipped] Stop using varargs in libkeyutils. am: 8f4bb45a am: d90a3bfc am: 40c3a1b8 -s ours am: 9ec78649 -s ours

am skip reason: Change-Id I3a6b68865e6b4c37ac005f5f24c3d6e1de7c5bac with SHA-1 8f4bb45a is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/11808927

Change-Id: I291b25cc08e9a3f89c2c772e655d8175943c6a3e