qcacmn: Add hal_rx_get_rx_fragment_number API

Implement hal_rx_get_rx_fragment_number
based on the chipset as the macro
HAL_RX_MPDU_GET_SEQUENCE_NUMBER is
chipset specific.

Change-Id: I967190fa3a55d45f46760f58eab5007bf5fa908f
CRs-Fixed: 2522133

hal/wifi3.0/hal_internal.h

@@ -380,6 +380,7 @@ struct hal_hw_txrx_ops {
 	void (*hal_tx_update_pcp_tid_map)(struct hal_soc *hal_soc, uint8_t pcp,
 					  uint8_t id);
 	void (*hal_tx_set_tidmap_prty)(struct hal_soc *hal_soc, uint8_t prio);
+	uint8_t (*hal_rx_get_rx_fragment_number)(uint8_t *buf);
 };
 
 /**