The 'aia' feature is added as a machine type option for the 'virt'
RISC-V machine, e.g. "-machine virt,aia=<val>".
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
