Fixed missed uses of size_t

Author: ndgrigorian

dpctl/tensor/libtensor/include/kernels/elementwise_functions/trunc.hpp

@@ -136,7 +136,7 @@ class trunc_contig_kernel;
 
 template <typename argTy>
 sycl::event trunc_contig_impl(sycl::queue &exec_q,
-                              size_t nelems,
+                              std::size_t nelems,
                               const char *arg_p,
                               char *res_p,
                               const std::vector<sycl::event> &depends = {})
@@ -179,7 +179,7 @@ template <typename T1, typename T2, typename T3> class trunc_strided_kernel;
 template <typename argTy>
 sycl::event
 trunc_strided_impl(sycl::queue &exec_q,
-                   size_t nelems,
+                   std::size_t nelems,
                    int nd,
                    const ssize_t *shape_and_strides,
                    const char *arg_p,