Merge "Copy legacy HAL header files to the wifi interface directory." into main am: 48def07853 am: ab5004ab0c

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3023129

Change-Id: I63d5c25fee6aea7a93036ff146bd662b21a5733c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>