Add missing depdencies

Summary:
When cross compiling for RISC-V these are missing dependencies that are required to build.

For gettext we are following what was done in OE-core with patch:

atk: add explicit gettext-native dependency

we need to explicitly specify gettext-native as a dependency as the gettext class reduces dependencies in native builds.

Reviewers: vkrause

Reviewed By: vkrause

Differential Revision: https://phabricator.kde.org/D14982