Fix the indent of wireless configuration file. am: 169dce701c

Original change: https://android-review.googlesource.com/c/platform/external/openwrt-prebuilts/+/3387667

Change-Id: I6382de0934172796a7c273f50aeae6083a81382f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>