mtd: spi: Fix incorrect indentation

Use tabs to be aligned with the rest of the code.

Fixes: 658df8bd9464 ("mtd: spi-nor-core: Add octal mode support")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index dabd40a..9ceff0e 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -67,7 +67,7 @@
 #define SPI_NOR_SKIP_SFDP	BIT(13)	/* Skip parsing of SFDP tables */
 #define USE_CLSR		BIT(14)	/* use CLSR command */
 #define SPI_NOR_HAS_SST26LOCK	BIT(15)	/* Flash supports lock/unlock via BPR */
-#define SPI_NOR_OCTAL_READ      BIT(16) /* Flash supports Octal Read */
+#define SPI_NOR_OCTAL_READ	BIT(16)	/* Flash supports Octal Read */
 };
 
 extern const struct flash_info spi_nor_ids[];