drm/amd/amdgpu/amdgpu_ids: Correct some function name disparity

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

 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c:200: warning: expecting prototype for amdgpu_vm_grab_idle(). Prototype was for amdgpu_vmid_grab_idle() instead
 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c:272: warning: expecting prototype for amdgpu_vm_grab_reserved(). Prototype was for amdgpu_vmid_grab_reserved() instead
 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c:337: warning: expecting prototype for amdgpu_vm_grab_used(). Prototype was for amdgpu_vmid_grab_used() instead
 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c:410: warning: expecting prototype for amdgpu_vm_grab_id(). Prototype was for amdgpu_vmid_grab() instead

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: Sumit Semwal <sumit.semwal@linaro.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -183,7 +183,7 @@ bool amdgpu_vmid_had_gpu_reset(struct amdgpu_device *adev,
 }
 
 /**
- * amdgpu_vm_grab_idle - grab idle VMID
+ * amdgpu_vmid_grab_idle - grab idle VMID
  *
  * @vm: vm to allocate id for
  * @ring: ring we want to submit job to
@@ -256,7 +256,7 @@ static int amdgpu_vmid_grab_idle(struct amdgpu_vm *vm,
 }
 
 /**
- * amdgpu_vm_grab_reserved - try to assign reserved VMID
+ * amdgpu_vmid_grab_reserved - try to assign reserved VMID
  *
  * @vm: vm to allocate id for
  * @ring: ring we want to submit job to
@@ -325,7 +325,7 @@ static int amdgpu_vmid_grab_reserved(struct amdgpu_vm *vm,
 }
 
 /**
- * amdgpu_vm_grab_used - try to reuse a VMID
+ * amdgpu_vmid_grab_used - try to reuse a VMID
  *
  * @vm: vm to allocate id for
  * @ring: ring we want to submit job to
@@ -397,7 +397,7 @@ static int amdgpu_vmid_grab_used(struct amdgpu_vm *vm,
 }
 
 /**
- * amdgpu_vm_grab_id - allocate the next free VMID
+ * amdgpu_vmid_grab - allocate the next free VMID
  *
  * @vm: vm to allocate id for
  * @ring: ring we want to submit job to