sf: Add bank addr code in CONFIG_SPI_FLASH_BAR

Defined bank addr code on CONFIG_SPI_FLASH_BAR macro, to reduce the
size for existing boards which has < 16Mbytes SPI flashes.

It's upto user which has provision to use the bank addr code for
flashes which has > 16Mbytes.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/spi_flash.h

@@ -38,13 +38,14 @@ struct spi_flash {
 	u32		page_size;
 	/* Erase (sector) size */
 	u32		sector_size;
+#ifdef CONFIG_SPI_FLASH_BAR
 	/* Bank read cmd */
 	u8		bank_read_cmd;
 	/* Bank write cmd */
 	u8		bank_write_cmd;
 	/* Current flash bank */
 	u8		bank_curr;
-
+#endif
 	void *memory_map;	/* Address of read-only SPI flash access */
 	int		(*read)(struct spi_flash *flash, u32 offset,
 				size_t len, void *buf);