tree 43cc8a8f8766be9f74afb4cb10c7f02028fb9140
parent a3998cadd6dd09a0274ed24f71186c85faa0c069
author Hansong Zhang <hsz@google.com> 1585087268 -0700
committer Hansong Zhang <hsz@google.com> 1585090927 -0700

LE: Add API for sending connection parameter update

Add Link::SendConnectionParameterUpdate to send LE connection parameter
update.

Next step: Expose this API to channel (or something else). We also need
to send HCI command instead of L2CAP when both supports 4.1.

Test: cert/run --host
Change-Id: I5e1cd28796be4d4b17a189a942fb08abb65cc865