qcacmn: Replenish Rx buffers on low threshold intr

Replenish buffers in RXDMA refill ring based on low threshold
interrupts in addition to regular Rx processing. Also increased
RXDMA refill ring size to 4096.

Change-Id: If1f4592c815fe2404c4952a96b721cb6d4fdfcd0

dp/wifi3.0/dp_rx_err.c

@@ -992,7 +992,7 @@ dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota)
 
 				default:
 					QDF_TRACE(QDF_MODULE_ID_DP,
-						QDF_TRACE_LEVEL_ERROR,
+						QDF_TRACE_LEVEL_DEBUG,
 						"REO error %d detected",
 						reo_error_code);
 				}
@@ -1029,13 +1029,13 @@ dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota)
 
 				case HAL_RXDMA_ERR_DECRYPT:
 					QDF_TRACE(QDF_MODULE_ID_DP,
-						QDF_TRACE_LEVEL_ERROR,
+						QDF_TRACE_LEVEL_DEBUG,
 					"Packet received with Decrypt error");
 					break;
 
 				default:
 					QDF_TRACE(QDF_MODULE_ID_DP,
-							QDF_TRACE_LEVEL_ERROR,
+							QDF_TRACE_LEVEL_DEBUG,
 							"RXDMA error %d",
 							rxdma_error_code);
 				}