qcacmn: Skip the Host Tx desc allocation for single offloaded radio

This changes takes care of the below issues.
1. Skip the host allocation of software Tx descriptors
   for single band NSS offloaded radio configuration.
2. Reset the reo frag destination to alternate select
   for single band offloaded radio configuration.

Change-Id: I3930f266ff9d81d876dda437b29b1ca83d542e12
diff --git a/dp/wifi3.0/dp_main.c b/dp/wifi3.0/dp_main.c
index c3ddff4..867fffa 100644
--- a/dp/wifi3.0/dp_main.c
+++ b/dp/wifi3.0/dp_main.c
@@ -2700,6 +2700,11 @@
 	case dp_nss_cfg_default:
 		*frag_dst_ring = HAL_SRNG_REO_EXCEPTION;
 		break;
+	case dp_nss_cfg_first_radio:
+		/*
+		 * This configuration is valid for single band radio which
+		 * is also NSS offload.
+		 */
 	case dp_nss_cfg_dbdc:
 	case dp_nss_cfg_dbtc:
 		*frag_dst_ring = HAL_SRNG_REO_ALTERNATE_SELECT;
@@ -4597,6 +4602,11 @@
 	switch (config) {
 	case dp_nss_cfg_default:
 		break;
+	case dp_nss_cfg_first_radio:
+		/*
+		 * This configuration is valid for single band radio which
+		 * is also NSS offload.
+		 */
 	case dp_nss_cfg_dbdc:
 	case dp_nss_cfg_dbtc:
 		wlan_cfg_set_num_tx_desc_pool(wlan_cfg_ctx, 0);