Merge "[RESTRICT AUTOMERGE] Revert "Removed IWLAN legacy mode support"" am: bb651dc667

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

Change-Id: Id551d23713d6797d514c419e888aa7ff2d500bc2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>