HID: Intel-thc-hid: Intel-thc: Add thc_dma_content into kernel doc

Convert thc_dma_content structure comments format into kernel doc
format, let it can be included into kernel doc.

Signed-off-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: Evenxf

drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h

@@ -117,9 +117,10 @@ struct thc_dma_configuration {
 	u32 dma_cntrl;
 };
 
-/*
- * THC DMA context
- * Store all THC Channel configures
+/**
+ * struct thc_dma_context - THC DMA context
+ * @thc_dma_configuration: Array of all THC Channel configures
+ * @use_write_interrupts: Indicate TxDMA using interrupt or polling
  */
 struct thc_dma_context {
 	struct thc_dma_configuration dma_config[MAX_THC_DMA_CHANNEL];