ASoC: cs47l92: Simplify error handling code in 'cs47l92_probe()'

ASoC: cs47l92: Simplify error handling code in 'cs47l92_probe()'

If 'madera_init_bus_error_irq()' fails,
'wm_adsp2_remove(&cs47l92->core.adsp[0])' will be called twice.
Once in the 'if' block, and once in the error handling path.
This is harmless, but one of this call can be axed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20191226162907.9490-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>