shared-mime-info: attempt to fix parallel build issues

shared-mime-info: attempt to fix parallel build issues

According to https://bugs.freedesktop.org/show_bug.cgi?id=46093 the
problem lies with 'make check' which is enabled by default.
But we don't care about running the check target, so disable it.
It will hopefully finally fix, for target:
http://autobuild.buildroot.net/results/03f/03fcc8aff675eb035e123eb2b01e4ed122c66cbc/
For host:
http://autobuild.buildroot.net/results/6c1/6c1fd50913ef8a3a5cc108f428f2c195c768324d/

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>