iw: Add upstream patch to fix beacon parsing

Picked up fix from upstream commit 0fc92835634e ("iw: fix the beacon
average signal parsing").

BUG=b:117182901
TEST=build and deploy on eve, check
"iw wlan0 station dump" reports correct negative signal strength (-55dBm)
instead of a unrealistic positive number (210 dBm).

Change-Id: I14b5638ea7fb16452a6cc28c2972db0fde426acf
Signed-off-by: Kirtika Ruchandani <kirtika@google.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1268075
Commit-Ready: Kirtika Ruchandani <kirtika@chromium.org>
Tested-by: Kirtika Ruchandani <kirtika@chromium.org>
Reviewed-by: Kirtika Ruchandani <kirtika@chromium.org>
3 files changed