Add a PSCI configure option

The boot-wrapper can be build with or without support for
PSCI. Therefore add that as a configure option (which defaults to not
using PSCI) and set the appropriate options in the makefile.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
[Mark: fix indentation]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
2 files changed