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

diff --git a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
index 2e63998..27d54e7 100644
--- a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
@@ -3300,7 +3300,7 @@
 // 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.