loader: fix dlopen performance regression caused by fix for CVE-2017-0670 am: d6b25861d0 am: a5f74a4a80  -s ours am: 3c77ef5326 am: 6cb0d4b2aa am: 781c67bd62 am: 8666246971 am: 9bc88caa31 am: 2542cfdb44 am: ee7deb734d
am: 46dfffdc67

Change-Id: I3a1e3dfa091c3e43c1e73700db6d6c9c686b54ef