mtd: spi-nor: slightly change code style in spi_nor_sr_ready()

Now that there is almost no special case code left in
spi_nor_sr_ready(), the return check looks odd. Move the function call
closer to the return code checking.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20220223134358.1914798-32-michael@walle.cc

Author: mwalle

drivers/mtd/spi-nor/core.c

@@ -563,8 +563,9 @@ int spi_nor_write_ear(struct spi_nor *nor, u8 ear)
  */
 int spi_nor_sr_ready(struct spi_nor *nor)
 {
-	int ret = spi_nor_read_sr(nor, nor->bouncebuf);
+	int ret;
 
+	ret = spi_nor_read_sr(nor, nor->bouncebuf);
 	if (ret)
 		return ret;