[stage2] Implement package1_parse_boot0

fusee/fusee-secondary/src/package1.h

@@ -0,0 +1,9 @@
+#ifndef FUSEE_PACKAGE1_H
+#define FUSEE_PACKAGE1_H
+
+#include <stdio.h>
+#include "key_derivation.h"
+
+int package1_parse_boot0(void **package1, size_t *package1_size, nx_keyblob_t *keyblobs, uint32_t *version, FILE *boot0);
+
+#endif