soc: qcom: glink_smd_xprt: Move to arch_initcall()

The SMD Transitional Transport is used by the Glink framework to
communicate with the power management processor for cases like voting for
clocks and regulators.  Therefore, the SMD transport is critical to the
boot process and should init as early as possible to unblock boot.

Move SMD Transitional Transport from module_init() to arch_initcall() to
unblock boot.

Change-Id: Ie0542b3d5a9e369d1388cb15cbe0e4523101b9e4
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>