qcacmn: Changes for Rx fast flag

Change to avoid processing of extended features
based of Fast RX flag

Also add changes to enable or disable this flag
based on feature settings

Change-Id: I8064780a271f8bdcf396bb9e2e2c14998f195535
CRs-Fixed: 3268842

dp/wifi3.0/dp_internal.h

@@ -4195,4 +4195,13 @@ void dp_rx_err_send_pktlog(struct dp_soc *soc, struct dp_pdev *pdev,
 {
 }
 #endif
+
+/*
+ * dp_pdev_update_fast_rx_flag() - Update Fast rx flag for a PDEV
+ * @soc  : Data path soc handle
+ * @pdev : PDEV handle
+ *
+ * return: None
+ */
+void dp_pdev_update_fast_rx_flag(struct dp_soc *soc, struct dp_pdev *pdev);
 #endif /* #ifndef _DP_INTERNAL_H_ */