scripts: Add fuchsia to platform dictionary

Change-Id: I9b7027a1dd11f5ea7d3b502c62f4edd05416fd52
diff --git a/scripts/common_codegen.py b/scripts/common_codegen.py
index aea552c..37e0b29 100644
--- a/scripts/common_codegen.py
+++ b/scripts/common_codegen.py
@@ -49,6 +49,7 @@
 
 platform_dict = {
     'android' : 'VK_USE_PLATFORM_ANDROID_KHR',
+    'fuchsia' : 'VK_USE_PLATFORM_FUCHSIA',
     'ios' : 'VK_USE_PLATFORM_IOS_MVK',
     'macos' : 'VK_USE_PLATFORM_MACOS_MVK',
     'mir' : 'VK_USE_PLATFORM_MIR_KHR',