kselftests: Add component to OWNERS file am: e4f29d39d4 am: 66e4658f0f am: 545a9e7152

Original change: https://android-review.googlesource.com/c/platform/external/linux-kselftest/+/2810773

Change-Id: Ib88bdb0a325edb55b6e7de75fc260b18ab0461ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>