spi: bcm53xx: make local symbol static

Make local symbol static, because this is used only in this file.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-bcm53xx.c b/drivers/spi/spi-bcm53xx.c
index 48f13df..e6600f7 100644
--- a/drivers/spi/spi-bcm53xx.c
+++ b/drivers/spi/spi-bcm53xx.c
@@ -210,7 +210,7 @@
  * BCMA
  **************************************************/
 
-struct spi_board_info bcm53xx_info = {
+static struct spi_board_info bcm53xx_info = {
 	.modalias	= "bcm53xxspiflash",
 };