Merge "Correct a comment in flags.mk" into main am: b915fbd9

Original change: https://android-review.googlesource.com/c/platform/build/+/3383774



Change-Id: Ida1b313078e400ec2e58de8b61ccc18b13fd1c07
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>