msm: ipc: Update to support multiple SMD links

Refactor the IPC Router to SMD Transport Abstraction Layer so that
multiple SMD links can be registered with IPC Router.

Change-Id: I6e26d91a49643dfd978959d1297d1a59da526976
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
3 files changed