ushare: fix build with NLS support

Add patch to fix build errors when NLS support is enabled.

Fixes:

  http://autobuild.buildroot.net/results/19d/19d67dd43e5a313c77e4be97ecb9811ffa52f797/



Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>