[mlir][bazel] Fix Bazel build after db0e7c7. (llvm#129532)

db0e7c7.

Author: bchetioui

utils/bazel/llvm-project-overlay/mlir/BUILD.bazel

@@ -9662,6 +9662,7 @@ cc_library(
         "lib/Target/LLVMIR/DataLayoutImporter.h",
         "lib/Target/LLVMIR/DebugImporter.cpp",
         "lib/Target/LLVMIR/DebugImporter.h",
+        "lib/Target/LLVMIR/LLVMImportInterface.cpp",
         "lib/Target/LLVMIR/LoopAnnotationImporter.cpp",
         "lib/Target/LLVMIR/LoopAnnotationImporter.h",
         "lib/Target/LLVMIR/ModuleImport.cpp",