Add hanhanW to Codegen/Common, GlobalOptimization, and ConstEval owner. (#14862)

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 96db103..f662810 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -61,13 +61,15 @@
 # Compiler
 /compiler/src/iree/compiler/ @benvanik
 /compiler/src/iree/compiler/Codegen/ @MaheshRavishankar
+/compiler/src/iree/compiler/Codegen/Common @hanhanW
 /compiler/src/iree/compiler/Codegen/LLVMCPU/ @dcaballe @hanhanW @MaheshRavishankar
 /compiler/src/iree/compiler/Codegen/LLVMGPU/ @MaheshRavishankar
 /compiler/src/iree/compiler/Codegen/SPIRV/ @antiagainst @MaheshRavishankar
 /compiler/src/iree/compiler/Codegen/TransformStrategies/ @qedawkins @MaheshRavishankar
-/compiler/src/iree/compiler/ConstEval/ @stellaraccident
+/compiler/src/iree/compiler/ConstEval/ @hanhanW @stellaraccident
 /compiler/src/iree/compiler/Dialect/Flow/ @hanhanW @MaheshRavishankar
 /compiler/src/iree/compiler/Dialect/Vulkan/ @antiagainst
+/compiler/src/iree/compiler/GlobalOptimization/ @hanhanW
 /compiler/src/iree/compiler/InputConversion/ @MaheshRavishankar @stellaraccident
 /compiler/src/iree/compiler/InputConversion/MHLO @hanhanW @MaheshRavishankar @rsuderman
 /compiler/src/iree/compiler/InputConversion/TOSA @MaheshRavishankar @rsuderman