build: Re-enable Sinhala language

* Depends on http://review.cyanogenmod.org/62344

Change-Id: Ife98711dde84d2e620da8f3d381e111aa843975d
build: Disable languages that have no translations

These languages have no translations at all and have no active maintainers
There is no point in having them enabled.

Change-Id: I2b0f6ca23ffb8c176edd38d67eddd35e4f78bc23