add poweroff command

hc

2023-12-14 982b8cc116118b3463d3f332581945625722acd8

 kernel/drivers/soc/atmel/Makefile
..
..
@@ -1 +1,3 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
1
2
 obj-$(CONFIG_AT91_SOC_ID) += soc.o
3
+obj-$(CONFIG_AT91_SOC_SFR) += sfr.o