bluetooth: Fix passkey string conversion

Currently passkey is padded with trailing zeros if it's less than 6
digits. It should be padded with leading zeros instead.

Bug: 817574
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I3a27412c9c053141d28a6e7e7e609de28729ee20
Reviewed-on: https://chromium-review.googlesource.com/1005616
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Sonny Sasaka <sonnysasaka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549695}
1 file changed