subpel functions will be moved in another patch. Change-Id: Idb2e049bad0b9b32ac42cc7731cd6903de2826ce
Change-Id: I446bdf3a405e4e9d2aa633d6281d66ea0cdfd79f (cherry picked from commit d7422b2b1eb9f0011a8c379c2be680d6892b16bc) (cherry picked from commit 6d741e4d76a7d9ece69ca117d1d9e2f9ee48ef8c)