drm/amdgpu: Fix up missing kdoc parameter 'inst' in get_wave_count() &...

drm/amdgpu: Fix up missing kdoc parameter 'inst' in get_wave_count() & kgd_gfx_v9_get_cu_occupancy()

Fix these warnings by adding 'inst' arguments to kdocs.

gcc with W=1
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c:692: warning: Function parameter or member 'inst' not described in 'get_wave_count'
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c:763: warning: Function parameter or member 'inst' not described in 'kgd_gfx_v9_get_cu_occupancy'

Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c

@@ -686,6 +686,7 @@ static void unlock_spi_csq_mutexes(struct amdgpu_device *adev)
  * @wave_cnt: Output parameter updated with number of waves in flight
  * @vmid: Output parameter updated with VMID of queue whose wave count
  *        is being collected
+ * @inst: xcc's instance number on a multi-XCC setup
  */
 static void get_wave_count(struct amdgpu_device *adev, int queue_idx,
 		int *wave_cnt, int *vmid, uint32_t inst)
@@ -724,6 +725,7 @@ static void get_wave_count(struct amdgpu_device *adev, int queue_idx,
  *                  belong to process with given pasid
  * @max_waves_per_cu: Output parameter updated with maximum number of waves
  *                    possible per Compute Unit
+ * @inst: xcc's instance number on a multi-XCC setup
  *
  * Note: It's possible that the device has too many queues (oversubscription)
  * in which case a VMID could be remapped to a different PASID. This could lead