uio: update kerneldoc comments for interrupt functions

Update the kerneldoc comment for uio_interrupt_handler and add one for
uio_interrupt_thread.

Reported-by: kernel test robot <[e-mail]>
Reported-by: Stephen Rothwell <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Fixes: f8a27dfa4b82 ("uio: use threaded interrupts")
Signed-off-by: Chris Packham <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/uio/uio.c

···
 EXPORT_SYMBOL_GPL(uio_event_notify);
 
 /**
- * uio_interrupt - hardware interrupt handler
+ * uio_interrupt_handler - hardware interrupt handler
  * @irq: IRQ number, can be UIO_IRQ_CYCLIC for cyclic timer
  * @dev_id: Pointer to the devices uio_device structure
  */
···
 	return ret;
 }
 
+/**
+ * uio_interrupt_thread - irq thread handler
+ * @irq: IRQ number
+ * @dev_id: Pointer to the devices uio_device structure
+ */
 static irqreturn_t uio_interrupt_thread(int irq, void *dev_id)
 {
 	struct uio_device *idev = (struct uio_device *)dev_id;