drm/vmwgfx/vmwgfx_resource: Fix worthy function headers demote some others

drm/vmwgfx/vmwgfx_resource: Fix worthy function headers demote some others

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

 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:215: warning: Excess function parameter 'obj_type' description in 'vmw_resource_init'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:303: warning: Excess function parameter 'p_res' description in 'vmw_user_resource_noref_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:328: warning: Function parameter or member 'dev_priv' not described in 'vmw_user_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:328: warning: Function parameter or member 'tfile' not described in 'vmw_user_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:328: warning: Function parameter or member 'handle' not described in 'vmw_user_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:328: warning: Function parameter or member 'out_surf' not described in 'vmw_user_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:328: warning: Function parameter or member 'out_buf' not described in 'vmw_user_lookup_handle'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:398: warning: Function parameter or member 'dirtying' not described in 'vmw_resource_do_validate'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:601: warning: Function parameter or member 'interruptible' not described in 'vmw_resource_reserve'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:601: warning: Function parameter or member 'no_backup' not described in 'vmw_resource_reserve'
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c:987: warning: Function parameter or member 'interruptible' not described in 'vmw_resource_pin'

Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Roland Scheidegger <sroland@vmware.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181313.3431493-11-lee.jones@linaro.org