ACPI: APEI: ERST: remove unneeded semicolon

Eliminate the following coccicheck warning:
./drivers/acpi/apei/erst.c:691:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/apei/erst.c

@@ -688,7 +688,7 @@ static int __erst_read_from_storage(u64 record_id, u64 offset)
 			break;
 		if (erst_timedout(&timeout, SPIN_UNIT))
 			return -EIO;
-	};
+	}
 	rc = apei_exec_run(&ctx, ACPI_ERST_GET_COMMAND_STATUS);
 	if (rc)
 		return rc;