[mlir] Fix the header guard (NFC)

/llvm-project/mlir/include/mlir/Dialect/GPU/Utils/DistributionUtils.h:9:9:
error: 'MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBUTIONUTILS_H_' is used as a header guard here, followed by #define of a different macro [-Werror,-Wheader-guard]
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/llvm-project/mlir/include/mlir/Dialect/GPU/Utils/DistributionUtils.h:10:9:
note: 'MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBITIONUTILS_H_' is defined here; did you mean 'MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBUTIONUTILS_H_'?
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBUTIONUTILS_H_
1 error generated.

Author: DamonFool

mlir/include/mlir/Dialect/GPU/Utils/DistributionUtils.h

@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #ifndef MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBUTIONUTILS_H_
-#define MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBITIONUTILS_H_
+#define MLIR_DIALECT_GPU_TRANSFORMS_DISTRIBUTIONUTILS_H_
 
 #include "mlir/Dialect/Affine/IR/AffineOps.h"
 #include "mlir/Dialect/Arith/IR/Arith.h"