Regenerate configure files with 3.4svn changed to 3.4.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195231 91177308-0d34-0410-b5e6-96231b3b80d8
Update to the 3.4 release numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195232 91177308-0d34-0410-b5e6-96231b3b80d8