drm/radeon/radeon_irq_kms: Demote non-conformant kernel-doc fix another

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/radeon_irq_kms.c:56: warning: Function parameter or member 'irq' not described in 'radeon_driver_irq_handler_kms'
 drivers/gpu/drm/radeon/radeon_irq_kms.c:56: warning: Function parameter or member 'arg' not described in 'radeon_driver_irq_handler_kms'
 drivers/gpu/drm/radeon/radeon_irq_kms.c:571: warning: Function parameter or member 'n' not described in 'radeon_irq_kms_set_irq_n_enabled'
 drivers/gpu/drm/radeon/radeon_irq_kms.c:571: warning: Excess function parameter 'num' description in 'radeon_irq_kms_set_irq_n_enabled'

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_irq_kms.c

@@ -43,11 +43,9 @@
 
 #define RADEON_WAIT_IDLE_TIMEOUT 200
 
-/**
+/*
  * radeon_driver_irq_handler_kms - irq handler for KMS
  *
- * @int irq, void *arg: args
- *
  * This is the irq handler for the radeon KMS driver (all asics).
  * radeon_irq_process is a macro that points to the per-asic
  * irq handler callback.
@@ -549,14 +547,14 @@ void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
 }
 
 /**
- * radeon_irq_kms_update_int_n - helper for updating interrupt enable registers
+ * radeon_irq_kms_set_irq_n_enabled - helper for updating interrupt enable registers
  *
  * @rdev: radeon device pointer
  * @reg: the register to write to enable/disable interrupts
  * @mask: the mask that enables the interrupts
  * @enable: whether to enable or disable the interrupt register
  * @name: the name of the interrupt register to print to the kernel log
- * @num: the number of the interrupt register to print to the kernel log
+ * @n: the number of the interrupt register to print to the kernel log
  *
  * Helper for updating the enable state of interrupt registers. Checks whether
  * or not the interrupt matches the enable state we want. If it doesn't, then