qcacld-3.0: Update correct len/last index for pcl entries

Currently, for pcl where 2G channels are added pcl index is
updated to total no. of 2G channels only and first 11 entries
are considered in dump from final pcl list.

Fix is to add total no of 2G channels in pcl index instead of
overwriting pcl index with no. of 2G channels.

Change-Id: Ibcd2509ecb052bfde62a47a6dee38dd17c3d1c8f
CRs-Fixed: 3166961

components/cmn_services/policy_mgr/src/wlan_policy_mgr_core.c

@@ -2660,7 +2660,7 @@ policy_mgr_add_24g_to_pcl(uint32_t *pcl_freqs, uint8_t *pcl_weights,
 		pcl_freqs[i + *index] = chlist_24g[i];
 	}
 
-	*index = i;
+	*index += i;
 	policy_mgr_debug("Add 24g chlist len %d len %d index %d",
 			 chlist_24g_len, num_to_add, *index);
 }