Avoid using fallback function on Android

Avoid using fallback function on Android

When a target different than EGL_NATIVE_BUFFER_ANDROID
is used with eglCreateImageKHR on sw rendering,
a fallback funcion is used.
As this returns NULL, EGL_NO_IMAGE_KHR is returned,
which crashes many apps

Using a function implemented for EGL/DRI2 in this cases
allows eglCreateImageKHR usage for other targets
(like EGL_GL_TEXTURE_2D_KHR)