cfi_flash: Export flash_sector_size() function.

Export flash_sector_size() function from drivers/mtd/cfi_flash.c,
so that it can be used in the upcoming cfi-mtd driver.
Signed-off-by: NPiotr Ziecik <kosmo@semihalf.com>
Signed-off-by: NStefan Roese <sr@denx.de>

drivers/mtd/cfi_flash.c

@@ -175,8 +175,6 @@ flash_info_t flash_info[CFI_MAX_FLASH_BANKS];	/* FLASH chips info */
 #define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_8BIT
 #endif
 
-typedef unsigned long flash_sect_t;
-
 /* CFI standard query structure */
 struct cfi_qry {
 	u8	qry[3];

include/flash.h

@@ -58,6 +58,8 @@ typedef struct {
 #endif
 } flash_info_t;
 
+typedef unsigned long flash_sect_t;
+
 /*
  * Values for the width of the port
  */
@@ -92,6 +94,7 @@ extern int flash_erase	(flash_info_t *, int, int);
 extern int flash_sect_erase (ulong addr_first, ulong addr_last);
 extern int flash_sect_protect (int flag, ulong addr_first, ulong addr_last);
 extern int flash_sect_roundb (ulong *addr);
+extern unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect);
 
 /* common/flash.c */
 extern void flash_protect (int flag, ulong from, ulong to, flash_info_t *info);