Updated spirv-headers.

3rdparty/spirv-headers/include/spirv/spir-v.xml

@@ -76,7 +76,8 @@
         <id value="23"  vendor="Google" tool="Tint Compiler" comment="Contact David Neto, [email protected]"/>
         <id value="24"  vendor="Google" tool="ANGLE Shader Compiler" comment="Contact Shahbaz Youssefi, [email protected]"/>
         <id value="25"  vendor="Netease Games" tool="Messiah Shader Compiler" comment="Contact Yuwen Wu, [email protected]"/>
-        <unused start="26" end="0xFFFF" comment="Tool ID range reservable for future use by vendors"/>
+        <id value="26"  vendor="Xenia" tool="Xenia Emulator Microcode Translator" comment="Contact Vitaliy Kuzmin, [email protected], https://github.com/xenia-project/xenia"/>
+        <unused start="27" end="0xFFFF" comment="Tool ID range reservable for future use by vendors"/>
     </ids>
 
     <!-- SECTION: SPIR-V Opcodes and Enumerants -->