feat(gdma): add burst size validation check during config

Co-authored-by: Cursor <cursoragent@cursor.com>

components/esp_driver_dma/include/esp_private/gdma.h

@@ -202,7 +202,7 @@ esp_err_t gdma_disconnect(gdma_channel_handle_t dma_chan);
 typedef struct {
     uint32_t max_data_burst_size; /*!< Set the max burst size when DMA read/write the data buffer.
                                        Set to 0 means to disable the data burst.
-                                       Other value must be power of 2, e.g., 4/8/16/32/64 */
+                                       Other values must be powers of 2 or supported by the selected GDMA bus. */
     bool access_ext_mem;          /*!< Set this if the DMA transfer will access external memory */
 } gdma_transfer_config_t;