qcacld-3.0: Remove wma_txrx_node params(tx_power,max_tx_power)

 Target_if cleanup done for tx_power,max_tx_power params
 Use vdev_mlme_mgmt_generic params(tx_power,maxregpower) instead

Change-Id: I3dc30bbce0026dc88f83009671851a70c1495b30
CRs-Fixed: 2555402
6 files changed