arch: arm: Add config for non-blocking secure calls

Introduce a Kconfig option to allow Secure function calls to be
pre-empted.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Signed-off-by: Øyvind Rønningstad <oyvind.ronningstad@nordicsemi.no>
1 file changed