ACPI: LPIT: Put the low power idle table after using it

The mapped LPIT table is not used for runtime after init,
put the ACPI table to release the table mapping.

Signed-off-by: Hanjun Guo <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/acpi/acpi_lpit.c

···
 	struct acpi_table_lpit *lpit;
 
 	status = acpi_get_table(ACPI_SIG_LPIT, 0, (struct acpi_table_header **)&lpit);
-
 	if (ACPI_FAILURE(status))
 		return;
 
 	lpit_process((u64)lpit + sizeof(*lpit),
 		     (u64)lpit + lpit->header.length);
+
+	acpi_put_table((struct acpi_table_header *)lpit);
 }