MAINTAINERS: Add a section on UI translation

There should be a person who will quickly evaluate new UI
translation, and find a way to update existing ones should
something changes in UI.

Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1575982519-29852-2-git-send-email-aleksandar.markovic@rt-rk.com>

MAINTAINERS

@@ -2715,6 +2715,10 @@ M: Daniel P. Berrange <berrange@redhat.com>
 S: Odd Fixes
 F: scripts/git-submodule.sh
 
+UI translations
+M: Aleksandar Markovic <aleksandar.m.mail@gmail.com>
+F: po/*.po
+
 Sphinx documentation configuration and build machinery
 M: Peter Maydell <peter.maydell@linaro.org>
 S: Maintained