classes/updatehub-runtime: Ensure the ubifs support is properly enabled
classes/updatehub-runtime: Ensure the ubifs support is properly enabled

In the ubifs case, the installation mode and the filesystem support are
the same and both need to be available.

Signed-off-by: Otavio Salvador <1d31b11c1b92bf5d043d36edfe7174db39a6b891@ossystems.com.br>

UpdateHub/meta-updatehub,UpdateHub/meta-updatehub,UpdateHub/meta-updatehub