Fix Linux build after r196787

Patch from Xavier de Gaye


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@196830 91177308-0d34-0410-b5e6-96231b3b80d8
Remove 'const' constraint on ProcessLaunchInfo parameter in Process::DoLaunch().
This 'const' is not required and prevent us to defer the launch to the Host layer.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@196837 91177308-0d34-0410-b5e6-96231b3b80d8