qcacmn: Add provision to set desc to higher value

Add support to change the tx_desc value to 65536. Some changes
to make the function argument as u32 type us made

Change-Id: I7cbde1b7ed4ab4e278c25c1ecfa94b7f673197f2
CRs-Fixed: 3130833

dp/wifi3.0/dp_main.c

@@ -2024,7 +2024,7 @@ void dp_desc_multi_pages_mem_alloc(struct dp_soc *soc,
 				   enum dp_desc_type desc_type,
 				   struct qdf_mem_multi_page_t *pages,
 				   size_t element_size,
-				   uint16_t element_num,
+				   uint32_t element_num,
 				   qdf_dma_context_t memctxt,
 				   bool cacheable)
 {