Merge "Add macro for API level V." am: 40af03dcaf am: feb8263213

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2506955

Change-Id: I8f974ad765431844da3f00b02763b8e8415f9d98
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>