[SYCL][COMPAT] Add one helper function get_local_mem_size() to get local memory size (#15695)

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Signed-off-by: chenwei.sun <[email protected]>

Author: tomflinda

sycl/doc/syclcompat/README.md

@@ -1112,6 +1112,7 @@ class device_ext : public sycl::device {
   int get_max_work_group_size() const;
   int get_mem_base_addr_align() const;
   size_t get_global_mem_size() const;
+  size_t get_local_mem_size() const;
   void get_memory_info(size_t &free_memory, size_t &total_memory) const;
 
   void get_device_info(device_info &out) const;

sycl/include/syclcompat/device.hpp

@@ -440,6 +440,10 @@ class device_ext : public sycl::device {
     return get_device_info().get_global_mem_size();
   }
 
+  size_t get_local_mem_size() const {
+    return get_device_info().get_local_mem_size();
+  }
+
   /// Get the number of bytes of free and total memory on the SYCL device.
   /// \param [out] free_memory The number of bytes of free memory on the SYCL
   /// device.