qcacmn: Cleanup rssi and snr used interchangeably

Cleanup rssi and snr used interchangeably

Change-Id: Idc78ca1ceb62af766aaf69e42ab5d6e8990a6f0b

dp/wifi3.0/dp_rx.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -52,6 +52,8 @@
 #define DP_PEER_METADATA_VDEV_ID_MASK	0x003f0000
 #define DP_PEER_METADATA_VDEV_ID_SHIFT	16
 
+#define DP_DEFAULT_NOISEFLOOR	(-96)
+
 #define DP_PEER_METADATA_PEER_ID_GET(_peer_metadata)		\
 	(((_peer_metadata) & DP_PEER_METADATA_PEER_ID_MASK)	\
 			>> DP_PEER_METADATA_PEER_ID_SHIFT)