fastboot: add AdbWinUsbApi as a required module

fastboot uses AdbWinUsbApi on Windows, let's keep it required.

Test: rm -rf out/host; mma fastboot and confirm AdbWinUsbApi is in out/
Bug: 36810152
Change-Id: Ica8b27cb1d0bca260f716dc61fdcea2ccc282623
1 file changed