ice: Gather the rx buf clean-up logic for better reuse

Pull out the code responsible for page counting and buffer recycling so
that it will be possible to clean up the Rx buffers in cases where we
won't allocate skb (ex. XDP)

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>