trusty-irq: Add support for secure interrupt mapping

Trusty TEE is using flat IRQ space to identify its
interrupts which does not match to IRQ domain model
introduced on the Linux side. This CL adds support
for optional "interrupt-templates" and "interrupt-ranges"
properties that can be used to define correspondence
between secure and non-secure IRQ IDs.

Change-Id: I113411f10da5be2f1a4ea1ea825d9cfb5e6d38a6
Signed-off-by: Michael Ryleev <gmar@google.com>