qcacmn: Add support to handle new htt format

If FW supports new htt format include only payload length in
the header length.

Change-Id: Ia5ec9a474bc5fe68de28273e6f9615d36de94a7c
CRs-Fixed: 2359253

htc/htc_internal.h

@@ -240,6 +240,8 @@ typedef struct _HTC_TARGET {
 	 * reflect the actual count.
 	 */
 	uint8_t wmi_ep_count;
+	/* Flag to indicate whether htc header length check is required */
+	bool htc_hdr_length_check;
 } HTC_TARGET;