Update gdb to 7.11. am: 5102a42dbb
am: b6a258e04f

* commit 'b6a258e04f2c28a9d3cb153fcdbec0f1b2b694d3':
  Update gdb to 7.11.

Change-Id: I0afb18da006c385d87b94ae6e467470e2e2c8e6e