Added two missing SceGxmTextureFilter values.
Added two missing SceGxmTextureFilter values.

Rinnegatamante/vita-headers,vitasdk/vita-headers,Rinnegatamante/vita-headers,Rinnegatamante/vita-headers,vitasdk/vita-headers,vitasdk/vita-headers,Rinnegatamante/vita-headers,vitasdk/vita-headers