etnaviv: update Android build files

etnaviv no longer builds on Android, fix this.

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3447>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3447>
8 files changed