Merge "Microoptimize vdso lookup." into main am: 18a6fa2d2f am: ad27b8618e

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2871814

Change-Id: I81430554df6f1a3d511943e03bc06ee6a5b7f439
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>