Replace alloc_fmr, unmap_fmr, dealloc_fmr and map_phys_fmr with
alloc_fast_reg_mr, alloc_fast_reg_page_list, free_fast_reg_page_list.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>