gpiolib: cdev: Fix typo in kernel doc for struct line

When eflags has been renamed to the edflags, the kernel doc change were
missed. Update kernel doc accordingly.

Fixes: b1a92e94 ("gpiolib: cdev: consolidate edge detector configuration flags")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Kent Gibson <warthog618@gmail.com>

drivers/gpio/gpiolib-cdev.c

@@ -410,7 +410,7 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip)
  * @desc: the GPIO descriptor for this line.
  * @req: the corresponding line request
  * @irq: the interrupt triggered in response to events on this GPIO
- * @eflags: the edge flags, GPIO_V2_LINE_FLAG_EDGE_RISING and/or
+ * @edflags: the edge flags, GPIO_V2_LINE_FLAG_EDGE_RISING and/or
  * GPIO_V2_LINE_FLAG_EDGE_FALLING, indicating the edge detection applied
  * @timestamp_ns: cache for the timestamp storing it between hardirq and
  * IRQ thread, used to bring the timestamp close to the actual event