qcacmn: dump reo ring when flush cache failed

When delete peer, host will try to flush all frames in REO queue
by sending a cmd through reo ring, but sometimes encounted failure to
send this cmd, dump ring status if ecountered above failure.

Change-Id: I3ea4e96e5999f85398b531ddf4f350e91e798d70
CRs-Fixed: 2167419

hal/wifi3.0/hal_api.h

@@ -195,6 +195,12 @@ extern uint32_t hal_srng_get_entrysize(void *hal_soc, int ring_type);
  */
 uint32_t hal_srng_max_entries(void *hal_soc, int ring_type);
 
+/**
+ * hal_srng_dump - Dump ring status
+ * @srng: hal srng pointer
+ */
+void hal_srng_dump(struct hal_srng *srng);
+
 /**
  * hal_srng_get_dir - Returns the direction of the ring
  * @hal_soc: Opaque HAL SOC handle