i#1701 port to Android: fix bug in symbol exports for non-GNU hash
i#1701 port to Android: fix bug in symbol exports for non-GNU hash

Fixes a bug in DR's symbol export iterator for non-GNU-style hash tables,
which are used on Android.  The bug resulted in offsets from the library
base rather than absolute addresses being returned.

Review-URL: https://codereview.appspot.com/269920043

AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio