relocatable.bbclass: ignore symlinks

If this links to a file created by the package install we already handle it
when we process the sysroot. By ignoring symlinks here we don't cause a build
to fail when the symlink is to somewhere in the host OS.

Signed-off-by: Joshua Lock <josh@linux.intel.com>

meta/classes/relocatable.bbclass

@@ -21,7 +21,8 @@ def process_dir (directory, d):
         if os.path.islink(fpath):
             fpath = os.readlink(fpath)
             if not os.path.isabs(fpath):
-                fpath = os.path.normpath(os.path.join(directory, fpath))
+                # Skip symlinks
+                continue
 
         if os.path.isdir(fpath):
             process_dir(fpath, d)