Need to check for USB permissions before running adb commands

[pdsouza]

Right now, the script only shows the udev permissions script if fastboot shows no permissions. But it's possible that adb itself doesn't have the right USB permissions too, so we need to show the udev permissions script in this case too.

We can check for this right at the beginning and prompt the user to run the wget script,

[pdsouza]

Update: this will be fixed with the new Go installers.

[utzcoz]

@pdsouza , This issue has been fixed by your old commit, maybe it can be closed.

[pdsouza]

@utzcoz I think the installers only show the script if fastboot shows a permission error but we need to check adb too since we use adb reboot bootloader.

I actually have fixed this in the new go installers on branch go-installers which fetch the releases directly from GitHub. Since we are shipping the update zips directly for users to install with TWRP I haven't prioritized them very much though. I think I can extend them to flash the images directly like these scripts too.

[utzcoz]

Ok, I got it. Hope go-installer can be merged to master quickly.