ASoC: xlnx: Use devm_platform_ioremap_resource() in xlnx_formatter_pcm_probe()

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/8f7cf483-6ab3-d00f-5606-863e9f5b31fc@web.de


Signed-off-by: Mark Brown <broonie@kernel.org>