[mlir] NFC: fix typo in #nvvm.target Tablegen record name (llvm#137621)

Author: christopherbate

mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td

@@ -3300,7 +3300,7 @@ def NVVM_Tcgen05StOp : NVVM_Op<"tcgen05.st"> {
 // NVVM target attribute.
 //===----------------------------------------------------------------------===//
 
-def NVVM_TargettAttr : NVVM_Attr<"NVVMTarget", "target"> {
+def NVVM_TargetAttr : NVVM_Attr<"NVVMTarget", "target"> {
   let description = [{
     GPU target attribute for controlling compilation of NVIDIA targets. All
     parameters decay into default values if not present.