iio: adc: pac1921: Move ACPI_FREE() to cover all branches

iio: adc: pac1921: Move ACPI_FREE() to cover all branches

This patch moves ACPI_FREE() in pac1921_match_acpi_device()
in order to cover all branches.

Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Fixes: 9fdf1d033316 ("iio: adc: pac1921: Add ACPI support to Microchip pac1921")
Acked-by: Matteo Martelli <matteomartelli3@gmail.com>
Signed-off-by: Victor Duicu <victor.duicu@microchip.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20250117065314.4431-1-victor.duicu@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>