Merge powerpc grub-mkrescue flavour with common. Use xorriso HFS+

feature for it.

include/grub/font.h

@@ -81,7 +81,7 @@ void grub_font_loader_init (void);
 
 /* Load a font and add it to the beginning of the global font list.
    Returns: 0 upon success; nonzero upon failure.  */
-int grub_font_load (const char *filename);
+grub_font_t grub_font_load (const char *filename);
 
 /* Get the font that has the specified name.  Font names are in the form
    "Family Name Bold Italic 14", where Bold and Italic are optional.

include/grub/video.h

@@ -542,4 +542,9 @@ extern void grub_video_sis315pro_fini (void);
 extern void grub_video_radeon_fuloong2e_fini (void);
 #endif
 
+#ifdef GRUB_UTIL
+void
+grub_video_set_adapter (grub_video_adapter_t adapter);
+#endif
+
 #endif /* ! GRUB_VIDEO_HEADER */