Merge "wifi: put vintf fragment into wifi apex" am: 9113258fe0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2402793

Change-Id: Ie841dc7f777f2925d778c2dc4cf9d5260ed7fdaa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>