build: Update known-good files for 1.2.169 header

Changes:
- Updated `known_good.json`
- Generated new source files

Change-Id: I5eaeea833fb6f3921c64308edeee6e33440eebea
diff --git a/scripts/common_codegen.py b/scripts/common_codegen.py
index e7bfb9c..7351e00 100644
--- a/scripts/common_codegen.py
+++ b/scripts/common_codegen.py
@@ -59,6 +59,7 @@
     'xlib_xrandr' : 'VK_USE_PLATFORM_XLIB_XRANDR_EXT',
     'provisional' : 'VK_ENABLE_BETA_EXTENSIONS',
     'directfb' : 'VK_USE_PLATFORM_DIRECTFB_EXT',
+    'screen' : 'VK_USE_PLATFORM_SCREEN_QNX',
 }
 
 #