Some following changes extends the PSCI driver with some additional
files. Avoid to continue cluttering the toplevel firmware directory
and first move the PSCI files into a PSCI sub-directory.
Suggested-by: Mark Rutland
Signed-off-by: Ulf Hansson
Acked-by: Daniel Lezcano
Acked-by: Mark Rutland
Acked-by: Lorenzo Pieralisi
Signed-off-by: Rafael J. Wysocki