gnat.adc: Remove restriction `No_Secondary_Stack`

This was only set to get more obvious error messages (i.e. restriction
violations instead of missing packages in the runtime environment).
However, it doesn't play well with the standard interfaces for console
applications. So remove the restriction to allow usage of the secondary
stack where possible.

Change-Id: Iceb64fe2b6f304e2e88b18cf3435fdbfda57440d
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/18784
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2 files changed