[packman] gpac tumbleweed issue

[Giacomo Comes]

Hi,
the package gpac is build against openjpeg
and requires libopenjpeg1 in order to be installed.
However on tumbleweed since February 2021
the packages openjpeg is not available anymore.
It is possible to build gpac against openjpeg2 by changing:
-BuildRequires:  pkgconfig(libopenjpeg)
+BuildRequires:  pkgconfig(libopenjp2)
in the spec file. I think this change can be used for leap too
because openjpeg2 is available on leap as well.

Cheers,
Giacomo