[automerger skipped] [RESTRICT AUTOMERGE] Revert "Removed IWLAN legacy mode support" am: 4262d21e am: 7b7339b7 am: f5638570 -s ours am: 3089b83b -s ours am: 31c6fec5 -s ours

am skip reason: subject contains skip directive

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2510797



Change-Id: I1955eed841846b3e4030f16fd5782a4ec69aece3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>