Modems which are using qmi do not reply on the 1st sync but they do
on subsequent. So qmi.sh is hanging on the first call. Since 2020 uqmi
supports a timeout parameter. Unfortunately qmi.sh didn't make use of
this parameter. So qmi.sh is now invoking an early dummy access to
unlock the modem
Signed-off-by: Uwe Niethammer <uwe@dr-niethammer.de>
(cherry picked from commit 32a696f9e419ebec5b166847a16a5a45d030acbd)
5b00873f5d