Fix symbol lookup order during relocation

  Relocate symbol against DF_1_GLOBAL shared libraries
  loaded before this shared library. This includes
  main executable, ld_preloads and other libraries
  that have DF_1_GLOBAL flag set.

Bug: 2643900
Bug: 15432753
Bug: 18186310

(cherry picked from commit d225a5e6)

Change-Id: I4e889cdf2dfbf8230b0790053d311ee6b0d0ee2d