qcacmn: Add fisa_sw_ft entry member to hold cumulative frag len

Add fisa_sw_ft entry member to hold the cumulative non head
frag lengths. This is used to do head_skb->data_len sanity check.

Change-Id: Ied65327c027dd60357ed1dc062655bfb903a12bb
CRs-Fixed: 2728319

dp/wifi3.0/dp_types.h

@@ -2446,6 +2446,7 @@ struct dp_fisa_rx_sw_ft {
 	uint32_t last_hal_aggr_count;
 	uint32_t cur_aggr_gso_size;
 	struct udphdr *head_skb_udp_hdr;
+	uint16_t frags_cumulative_len;
 };
 
 #define DP_RX_GET_SW_FT_ENTRY_SIZE sizeof(struct dp_fisa_rx_sw_ft)