ASoC: codecs: ab8500: Fix casting of private data

ASoC: codecs: ab8500: Fix casting of private data

ab8500_filter_controls[i].private_value is initialized using

	.private_value = (unsigned long)&(struct filter_control)
		{.count = xcount, .min = xmin, .max = xmax}

thus it's a pointer to a struct filter_control casted to unsigned long.

So to get back that pointer .private_data must be cast back, not its
address.

Fixes: 679d7abdc754 ("ASoC: codecs: Add AB8500 codec-driver")
Signed-off-by: Christian A. Ehrhardt <christian.ehrhardt@codasip.com>
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20260428192255.2294705-2-u.kleine-koenig@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>