nios2: convert altera sysid to driver model

Convert altera sysid to driver model with misc uclass.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Chin Liang See <clsee@altera.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 7e76b12..aa137f5 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -7,6 +7,7 @@
 
 obj-$(CONFIG_MISC) += misc-uclass.o
 obj-$(CONFIG_ALI152X) += ali512x.o
+obj-$(CONFIG_ALTERA_SYSID) += altera_sysid.o
 obj-$(CONFIG_DS4510)  += ds4510.o
 obj-$(CONFIG_CBMEM_CONSOLE) += cbmem_console.o
 obj-$(CONFIG_CROS_EC) += cros_ec.o