Update gdb to 7.11. am: 039a04d8a5 am: c5013ed49b
am: b525580bd7

* commit 'b525580bd7018feeecef5fd9eb32a640dede983f':
  Update gdb to 7.11.

Change-Id: I8aace3460846969652936528cd9fb5f0b3028c16