acpi/sata.c: Fix Wunterminated-string-initialization error on port_name

src/acpi/sata.c: In function 'generate_sata_ssdt_ports':
src/acpi/sata.c:27:29: error: initializer-string for array of 'char' is too long [-Werror=unterminated-string-initialization]
   27 |         char port_name[4] = "PR00";
      |                             ^~~~~~

Change-Id: Ie80c2329c4a2698bd9e72ba1b36c1c05e37b214b
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84166
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
Reviewed-by: Sumeet Pawnikar <sumeet4linux@gmail.com>

src/acpi/sata.c

@@ -24,7 +24,7 @@ void generate_sata_ssdt_ports(const char *scope, uint32_t enable_map)
 {
 	int i;
 	uint32_t bit;
-	char port_name[4] = "PR00";
+	char port_name[5] = "PR00";
 
 	acpigen_write_scope(scope);