We have been returning success even if snd_soc_card_jack_new() fails.
Lets check the return value and return error if it fails.

Fixes: 12cc6d1d ("ASoC: tegra_alc5632: Register jacks at the card level")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mark Brown <broonie@kernel.org>