sf: Rename spi-nor-tiny functions

The 'tiny' SPI nor functions have the same name as their big brothers,
which can be confusing. Use different names so it is clear which
version is in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/mtd/spi/spi-nor-tiny.c b/drivers/mtd/spi/spi-nor-tiny.c
index 68152ce..7aa24e1 100644
--- a/drivers/mtd/spi/spi-nor-tiny.c
+++ b/drivers/mtd/spi/spi-nor-tiny.c
@@ -361,7 +361,7 @@
  * Erase an address range on the nor chip.  The address range may extend
  * one or more erase sectors.  Return an error is there is a problem erasing.
  */
-static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
+static int spi_nor_erase_tiny(struct mtd_info *mtd, struct erase_info *instr)
 {
 	return -ENOTSUPP;
 }
@@ -390,8 +390,8 @@
 	return ERR_PTR(-EMEDIUMTYPE);
 }
 
-static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
-			size_t *retlen, u_char *buf)
+static int spi_nor_read_tiny(struct mtd_info *mtd, loff_t from, size_t len,
+			     size_t *retlen, u_char *buf)
 {
 	struct spi_nor *nor = mtd_to_spi_nor(mtd);
 	int ret;
@@ -426,8 +426,8 @@
  * FLASH_PAGESIZE chunks.  The address range may be any size provided
  * it is within the physical boundaries.
  */
-static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
-			 size_t *retlen, const u_char *buf)
+static int spi_nor_write_tiny(struct mtd_info *mtd, loff_t to, size_t len,
+			      size_t *retlen, const u_char *buf)
 {
 	return -ENOTSUPP;
 }
@@ -741,9 +741,9 @@
 	mtd->writesize = 1;
 	mtd->flags = MTD_CAP_NORFLASH;
 	mtd->size = info->sector_size * info->n_sectors;
-	mtd->_erase = spi_nor_erase;
-	mtd->_read = spi_nor_read;
-	mtd->_write = spi_nor_write;
+	mtd->_erase = spi_nor_erase_tiny;
+	mtd->_read = spi_nor_read_tiny;
+	mtd->_write = spi_nor_write_tiny;
 
 	nor->size = mtd->size;