qcacld-3.0: enable defer reo queue descriptor free config for qca6390

Enable defer reo queue descriptor free feature for QCA6390.

Change-Id: I54adea9f73b38507795687a7c1507d59a4132b7a
CRs-Fixed: 3375631

configs/qca6390_defconfig

@@ -346,7 +346,8 @@ CONFIG_HTT_PADDR64 := y
 CONFIG_RX_OL := y
 CONFIG_TX_TID_OVERRIDE := y
 CONFIG_DP_TXRX_SOC_ATTACH := y
-endif
+CONFIG_REO_DESC_DEFER_FREE := y
+endif #CONFIG_LITHIUM
 
 # As per target team, build is done as follows:
 # Defconfig : build with default flags