coding style: open function's brace at beginning of new line

Issue identified by checkpatch script from Linux kernel v5.1 using
the command

	find src/ -type f -exec ./tools/scripts/checkpatch.pl \
	-q --types OPEN_BRACE -f {} \;

Change-Id: I6d1356ed11e2699525f384efb7556bc2efdc299f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5628
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>

src/target/openrisc/or1k.c

@@ -1207,8 +1207,8 @@ int or1k_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *file
 }
 
 static int or1k_checksum_memory(struct target *target, target_addr_t address,
-		uint32_t count, uint32_t *checksum) {
-
+		uint32_t count, uint32_t *checksum)
+{
 	return ERROR_FAIL;
 }