ACPICA: acpidump: drop ACPI_NONSTRING attribute from file_name

Partially revert commit 70662db ("ACPICA: Apply ACPI_NONSTRING in
more places") as I've yet again incorrectly applied the ACPI_NONSTRING
attribute where it is not needed.

A warning was initially reported by Collin Funk [1], and further review
by Jiri Slaby [2] highlighted another issue related to the same commit.

Drop the ACPI_NONSTRING attribute to fix the issue.

Fixes: 70662db ("ACPICA: Apply ACPI_NONSTRING in more places")
Link: https://lore.kernel.org/all/87ecvpcypw.fsf@gmail.com [1]
Link: https://lore.kernel.org/all/5c210121-c9b8-4458-b1ad-0da24732ac72@kernel.org [2]
Link: acpica/acpica@a6ee09ca
Reported-by: Collin Funk <collin.funk1@gmail.com>
Signed-off-by: Ahmed Salem <x0rw3ll@gmail.com>
Cc: 6.16+ <stable@vger.kernel.org> # 6.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: X0RW3LL

tools/power/acpi/tools/acpidump/apfiles.c

@@ -103,7 +103,7 @@ int ap_open_output_file(char *pathname)
 
 int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 {
-	char filename[ACPI_NAMESEG_SIZE + 16] ACPI_NONSTRING;
+	char filename[ACPI_NAMESEG_SIZE + 16];
 	char instance_str[16];
 	ACPI_FILE file;
 	acpi_size actual;