mtd: spi-nor: move function declaration out of sfdp.h

sfdp.h should only contain constants related to the JEDEC SFDP
specification(s).
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20220810220654.1297699-5-michael@walle.cc

drivers/mtd/spi-nor/core.h

@@ -701,6 +701,8 @@ int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
 int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
 				     const u8 *buf, size_t len);
 
+int spi_nor_parse_sfdp(struct spi_nor *nor);
+
 static inline struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
 {
 	return container_of(mtd, struct spi_nor, mtd);

drivers/mtd/spi-nor/sfdp.h

@@ -107,6 +107,4 @@ struct sfdp_parameter_header {
 	u8		id_msb;
 };
 
-int spi_nor_parse_sfdp(struct spi_nor *nor);
-
 #endif /* __LINUX_MTD_SFDP_H */