use curl like everything else on vendorsetup.sh

Change-Id: I80bd2f98c15450064cd24a5488de12380a98bf71
tell curl to be quiet in vendorsetup.sh

Change-Id: I0c2310d40a0a783993cb52ea4424aa873265729a
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_vendor_cm into cm-10.1