Build - envsetup: Wait for device in installboot/installrecovery

* Useful when you're racing against a bug that causes a kernel panic
   shortly after USB turns on :(

envsetup: Use wait-for-online so these cmds work in recovery

Change-Id: I1ee52019d4b71ca337bd9ac4b3772d27a227b297
Signed-off-by: STELIX <ssspinni@gmail.com>