cmd: ubi: Make ubi_detach() static

Its only called from this file, so make it static. While at it, remove
some occurances of multiple blank lines as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>

cmd/ubi.c

@@ -101,7 +101,6 @@ static int ubi_check(char *name)
 	return 1;
 }
 
-
 static int verify_mkvol_req(const struct ubi_device *ubi,
 			    const struct ubi_mkvol_req *req)
 {
@@ -415,7 +414,7 @@ static int ubi_dev_scan(struct mtd_info *info, const char *vid_header_offset)
 	return 0;
 }
 
-int ubi_detach(void)
+static int ubi_detach(void)
 {
 #ifdef CONFIG_CMD_UBIFS
 	/*
@@ -473,7 +472,6 @@ static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-
 	if (strcmp(argv[1], "detach") == 0) {
 		if (argc < 2)
 			return CMD_RET_USAGE;
@@ -481,7 +479,6 @@ static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return ubi_detach();
 	}
 
-
 	if (strcmp(argv[1], "part") == 0) {
 		const char *vid_header_offset = NULL;