qcacmn: Change the number of tx descs for direct switch

Change the number of tx descs per soc for direct switch
used for ppe2tcl ring to 2048 from existing 8192 to reduce
buffer usage.

Change-Id: I1e749833002926e9b6b9a84d38651525548dc79c
CRs-Fixed: 3391066

wlan_cfg/cfg_dp.h

@@ -475,7 +475,7 @@
 #define WLAN_CFG_REO2PPE_RING_SIZE_MIN 64
 #define WLAN_CFG_REO2PPE_RING_SIZE_MAX 16384
 
-#define WLAN_CFG_PPE2TCL_RING_SIZE 8192
+#define WLAN_CFG_PPE2TCL_RING_SIZE 2048
 #define WLAN_CFG_PPE2TCL_RING_SIZE_MIN 64
 #define WLAN_CFG_PPE2TCL_RING_SIZE_MAX 32768