board/qemu-armv7a: add board_power_off

This allows to power off qemu-armv7a target via NSH `quit` command.

Signed-off-by: Yanfeng Liu <[email protected]>

Author: yf13

boards/arm/qemu/qemu-armv7a/src/qemu_boardinit.c

@@ -24,6 +24,7 @@
  * Included Files
  ****************************************************************************/
 
+#include <nuttx/arch.h>
 #include <nuttx/config.h>
 #include <stdint.h>
 #include <nuttx/board.h>
@@ -113,3 +114,13 @@ void board_late_initialize(void)
   qemu_bringup();
 }
 #endif /* CONFIG_BOARD_LATE_INITIALIZE */
+
+#if defined(CONFIG_BOARDCTL_POWEROFF) && defined(CONFIG_ARM_PSCI)
+int board_power_off(int status)
+{
+  UNUSED(status);
+
+  up_systempoweroff();
+  return 0;
+}
+#endif