adbd: read, print, and ignore USB control transfers.

It seems like we're blowing up when receiving a control transfer that's
intended for Android Auto, because we're not expecting to get the data
for the control transfer in a subsequent read.

Bug: http://b/131867920
Test: none
Change-Id: Icfd642e6dfc02d2ccbdd60c39f89e534298c944d
1 file changed