drm/i915/gvt: fix intel_vgpu_alloc_resource() kernel-doc parameter

drivers/gpu/drm/i915/gvt/aperture_gm.c:344: warning: Function parameter or member 'conf' not described in 'intel_vgpu_alloc_resource'
drivers/gpu/drm/i915/gvt/aperture_gm.c:344: warning: Excess function parameter 'param' description in 'intel_vgpu_alloc_resource'
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9213214c9caa296ebd349a5d5b44c2bbb45cdf99.1683041799.git.jani.nikula@intel.com

drivers/gpu/drm/i915/gvt/aperture_gm.c

@@ -330,7 +330,7 @@ void intel_vgpu_reset_resource(struct intel_vgpu *vgpu)
 /**
  * intel_vgpu_alloc_resource() - allocate HW resource for a vGPU
  * @vgpu: vGPU
- * @param: vGPU creation params
+ * @conf: vGPU creation params
  *
  * This function is used to allocate HW resource for a vGPU. User specifies
  * the resource configuration through the creation params.