qcacmn: Enable ppe ds by default through ini

Enable ppe direct switch feature by default
through ini, and rename the ppe_enable parameter
to ppe_ds_enable

Change-Id: I574838394ab9edd0445f65f81f05566967208276
CRs-Fixed: 3339167

wlan_cfg/cfg_dp.h

@@ -1620,7 +1620,7 @@
 		CFG_VALUE_OR_DEFAULT, "DP PPEDS Tx Descriptors")
 
 #define CFG_DP_PPE_ENABLE \
-	CFG_INI_BOOL("ppe_enable", false, \
+	CFG_INI_BOOL("ppe_ds_enable", true, \
 	"DP ppe enable flag")
 
 #define CFG_DP_REO2PPE_RING \