ASoC: meson: axg-tdm: consistently use SND_SOC_DAIFMT defines

There a mix of SND_SOC_DAIFMT_ and SND_SOC_DAI_FORMAT_ in
axg-tdm-interface.c. Even, if this is currently the same thing, lets use
the same group consistently.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>