Set the correct path to os-collect-config

os-collect-config is installed in /usr/bin. This adjusts the systemd
service file accordingly to make it work for openSUSE. On Fedora the
wrong path didn't cause any problems because /bin is just a symlink to
/usr/bin there.

Change-Id: I2f02b12f9667920196084ee0abef1c9f676d413a
Merge "Set the correct path to os-collect-config"