freerdp security update

2:2.2.0-5 - Update: Refactored RPC gateway parser rhbz2017944 + fix issues discovered by Covscan 2:2.2.0-4 - Refactored RPC gateway parser rhbz2017944 2.1.1-3 - Add checks for bitmap and glyph width/heigth values rhbz2017951...