drivers: soc: qcom: Support the new SCM interface

The secure world implementation now supports a new SMC
interface that is more aligned with the ARMV8 SMC standard.
Support this new interface.

Change-Id: I717b92fe626536fb01b3cbc21ccb8a00f7251be6
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>