qcacmn: SG support in RX path

Process the sg frames received in RX path.

Change-Id: Ia2d83c75c46f804599ca8fda4668c43ee508d59e
CRs-Fixed: 3303055

dp/wifi3.0/dp_rx.h

@@ -886,6 +886,12 @@ dp_rx_wbm_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
  */
 qdf_nbuf_t dp_rx_sg_create(struct dp_soc *soc, qdf_nbuf_t nbuf);
 
+/**
+ * dp_rx_is_sg_supported() - SG packets processing supported or not.
+ *
+ * Return: returns true when processing is supported else false.
+ */
+bool dp_rx_is_sg_supported(void);
 
 /*
  * dp_rx_desc_nbuf_and_pool_free() - free the sw rx desc pool called during