net: wwan: iosm: use ACPI_FREE() but not kfree() in ipc_pcie_read_bios_cfg()

net: wwan: iosm: use ACPI_FREE() but not kfree() in ipc_pcie_read_bios_cfg()

acpi_evaluate_dsm() should be coupled with ACPI_FREE() to free the ACPI
memory, because we need to track the allocation of acpi_object when
ACPI_DBG_TRACK_ALLOCATIONS enabled, so use ACPI_FREE() instead of kfree().

Fixes: adc7ab9eb694 ("net: wwan: iosm: fix memory leak in ipc_pcie_read_bios_cfg")
Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Link: https://lore.kernel.org/r/20221118062447.2324881-1-bobo.shaobowang@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>