Building OpenCL applications with NDK? What phones can support it?

Does anyone know what phones support OpenCL so that I could build OpenCL applications with NDK for android?

In particular I am interested in speeding up SQLite with something that was done in this blog:
https://fullshovel.wordpress.com/201...sqlite-on-arm/

At the moment I have rooted OnePlus One and old Nexus 4.