Fix hci_hal_host

Separate hci_hal_host (linux socket-based) and rootcanal
implementation, since they are different.  We get an entire packet
through linux socket, but we get a tcp stream from rootcanal, so
handling of the incoming packets are different.

Fix the crash when we block at reading HCI reset response.

Test: run gd on chrome os
Tag: #stability
Bug: 181909671
Change-Id: I194744e61cf20f003a117405a20570a94382bce6