[WINLOGON][WIN32K][WINSRV] -Silence a lot of debug prints in the shutdown sequence...

[WINLOGON][WIN32K][WINSRV] -Silence a lot of debug prints in the shutdown sequence. Add some debug prints in case of error.  Also print the name of the processes that get terminated. Keep the debug prints that show the parameters that are passed to SrvExitWindowsEx and WM_LOGONNOTIFY.

svn path=/trunk/; revision=75973