ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt()

acpi_init_fpdt() forgets to call acpi_put_table() in an error path.

Add the missing function call to fix it.

Fixes: d1eb86e5

 ("ACPI: tables: introduce support for FPDT table")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>