Add a TODO for aom_highbd_fdct16x16_1_sse2 tests

- Here function, aom_fdct16x16_1_sse2 is mistakely tested. It can pass
  AOM_BITS_8, AOM_BITS_10, but not AOM_BITS_12. We should fix this test
  when aom_highbd_fdct16x16_1_sse2 is available.

Change-Id: I5cac6ee5404ff6d833940e1ecc34663b29d7a41c
1 file changed