forked from Mirrors/opensbi

Add RPMI based system suspend driver. To test this, execute the follwoing in Linux: $ echo mem > /sys/power/state To wake up, execute the following command on qemu monitor terminal: (qemu) system_wakeup Signed-off-by: Subrahmanya Lingappa <slingappa@ventanamicro.com> Signed-off-by: Anup Patel <apatel@ventanamicro.com>