platform: msm_shared: Update the scm calls to support ARM interface

This patch also adds support for the following things.

1. Add new ARM interface support to halt pmic arbiter.
2. Update the function ID to halt the PMIC Arbiter on newer versions of TZ.
3. Add a new scm call to check if device booted in secure boot mode
or not.
4. Add new SCM APIs that allows read/write on secure registers.

Change-Id: Ia85c91ba8d7d2b7ef28251ec631bfd331a06a26f
2 files changed