bluetooth: windows: Fix variable spelling mistake

`discovery_completed_included_charateristics_` should be
`discovery_completed_included_characteristics_`.  This change fixes
that.

Change-Id: I30648137fa54920a11f58455d15b8ce3706f63fe
Reviewed-on: https://chromium-review.googlesource.com/764947
Commit-Queue: Conley Owens <cco3@chromium.org>
Reviewed-by: Vincent Scheib <scheib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516041}
2 files changed