tools/fakeroot: fix build error on macOS

Signed-off-by: Felix Fietkau <nbd@nbd.name>

tools/fakeroot/patches/100-macos_compile_fix.patch

@@ -0,0 +1,11 @@
+--- a/libfakeroot_inode64.c
++++ b/libfakeroot_inode64.c
+@@ -36,6 +36,8 @@
+ #include <fts.h>
+ #endif /* HAVE_FTS_H */
+ 
++void load_library_symbols(void);
++
+ #include "wrapped.h"
+ #include "wraptmpf.h"
+ #include "wrapdef.h"