libpayload: export get_cbfs_header()

Keep in sync with coreboot's version.

Change-Id: I8a253446bd3b2ce9d05c6076a3f49f0260ecd5f9
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/158
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

payloads/libpayload/include/cbfs_core.h

@@ -176,5 +176,6 @@ void *cbfs_find_file(const char *name, int type);
 
 /* returns 0 on success, -1 on failure */
 int cbfs_decompress(int algo, void *src, void *dst, int len);
+struct cbfs_header *get_cbfs_header(void);
 #endif
 

payloads/libpayload/libcbfs/cbfs_core.c

@@ -55,7 +55,7 @@
 
 
 /* returns pointer to master header or 0xffffffff if not found */
-static struct cbfs_header *get_cbfs_header(void)
+struct cbfs_header *get_cbfs_header(void)
 {
 	struct cbfs_header *header;