drivers: initialize libgpiod v1 request config

Ubuntu noble still ships libgpiod 1.x, which selects the local-gpio v1
implementation. That path declared struct gpiod_line_request_config
without initializing the whole structure before passing it to libgpiod,
leaving padding or future fields undefined under stricter toolchains.

Zero-initialize the request configuration before filling the fields
cdba uses, matching the defensive style needed for older supported
distributions and newer compilers.

Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>

drivers/local-gpio-v1.c

@@ -25,7 +25,7 @@ int local_gpio_init(struct local_gpio *local_gpio)
 	int i;
 
 	for (i = 0; i < GPIO_COUNT; ++i) {
-		struct gpiod_line_request_config cfg;
+		struct gpiod_line_request_config cfg = { 0 };
 
 		if (!local_gpio->options->gpios[i].present)
 			continue;