factored out InitPaDeviceInfoFromAsioDriver function. skip device rather than failing entire init process if a single ASIO driver returns an error during init. This was happening with MOTU devices if the device wasn't present. See ticket #221

git-svn-id: http://subversion.assembla.com/svn/portaudio/portaudio/trunk@1890 0f58301d-fd10-0410-b4af-bbb618454e57