media: staging: rkisp1: rsz: make const array static, makes object smaller

Don't populate the const array dev_names on the stack but instead it
static. Makes the object code smaller by 15 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  17091	   2648	     64	  19803	   4d5b	media/rkisp1/rkisp1-resizer.o

After:
   text	   data	    bss	    dec	    hex	filename
  17012	   2712	     64	  19788	   4d4c	media/rkisp1/rkisp1-resizer.o

(gcc version 10.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-resizer.c

@@ -763,8 +763,10 @@ static void rkisp1_rsz_unregister(struct rkisp1_resizer *rsz)
 
 static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
 {
-	const char * const dev_names[] = {RKISP1_RSZ_MP_DEV_NAME,
-					  RKISP1_RSZ_SP_DEV_NAME};
+	static const char * const dev_names[] = {
+		RKISP1_RSZ_MP_DEV_NAME,
+		RKISP1_RSZ_SP_DEV_NAME
+	};
 	struct media_pad *pads = rsz->pads;
 	struct v4l2_subdev *sd = &rsz->sd;
 	int ret;