msm: smp2p: Fix multiple registrations for inbound entry

If multiple clients register for the same inbound entry, then the
registration information is overwritten resulting in the loss of the
previous registration.

Fix the inbound entry registration to only perform initialization for
the first registration.

Change-Id: Ibda6a6d62dc82b456d675c3412057033bfe6854f
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>
2 files changed