Fix MSVC compilation following #18682 (#18830)

Signed-off-by: Benoit Jacob <jacob.benoit.1@gmail.com>

compiler/plugins/target/LLVMCPU/ResolveCPUAndCPUFeatures.h

diff --git a/compiler/plugins/target/LLVMCPU/ResolveCPUAndCPUFeatures.h b/compiler/plugins/target/LLVMCPU/ResolveCPUAndCPUFeatures.h
index fa23e68..51adc2f 100644
--- a/compiler/plugins/target/LLVMCPU/ResolveCPUAndCPUFeatures.h
+++ b/compiler/plugins/target/LLVMCPU/ResolveCPUAndCPUFeatures.h
@@ -7,6 +7,7 @@
 #ifndef IREE_COMPILER_PLUGINS_TARGET_LLVMCPU_RESOLVECPUANDCPUFEATURES_H_
 #define IREE_COMPILER_PLUGINS_TARGET_LLVMCPU_RESOLVECPUANDCPUFEATURES_H_
 
+#include <string>
 #include <string_view>
 
 namespace mlir::iree_compiler::IREE::HAL {