buildroot

qt: fix build with ALSA >= 1.1.x

ALSA > 1.1.x are not determined correctly when configuring the library.
A patch, identical to the one used for Qt5, is added to the qt package
to solve this problem.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>