CUDA : fix typo in clang pragma comment [no ci] (#18830)

ggml/src/ggml-cuda/fattn-vec.cuh

@@ -10,7 +10,7 @@ static constexpr __device__ int ggml_cuda_fattn_vec_get_nthreads_device() {
     return 128;
 }
 
-// Currenlty llvm with the amdgcn target dose not support unrolling loops
+// Currenlty llvm with the amdgcn target does not support unrolling loops
 // that contain a break that can not be resolved at compile time.
 #ifdef __clang__
 #pragma clang diagnostic push