Update Nss and bandwidth in wpa_supplicant hidl.

Pass max_nss_rx, max_nss_tx and channel_bandwidth capabilities of the
current network from wpa_supplicant to framework through hidl.

Bug: 147390882
Test: VTS test
Test: manual test with various APs.
Change-Id: I319d40d7b3e611adec76ab5e13d44c4eba5201d3
1 file changed