Update VTS test dependencies.

Supplicant and Hostapd tests have a dependency on
the Vendor HAL in order to do setup/cleanup,
such as bringing up an interface.

This change will make the tests compatible with either
the HIDL or AIDL Vendor HAL, depending on which
is available.

Bug: 205044134
Test: atest VtsHalHostapdTargetTest
      atest VtsHalWifiSupplicantStaIfaceTargetTest \
            VtsHalWifiSupplicantStaNetworkTargetTest \
	    VtsHalWifiSupplicantP2pIfaceTargetTest
      Tests were run using both the HIDL and AIDL
      Vendor HALs.
Change-Id: I1f6b15016414a0bf614703315b47b5b47d3a1e50