The '__sg_alloc_table_from_pages()' was expanded to support dynamic
allocation of SG table from pages for the drivers that can't supply all the
pages at one time, in linux-v5.9 at:

	commit 07da1223ec939982497db3caccd6215b55acc35c ("lib/scatterlist:
	Add support in dynamic allocation of SG table from pages")

Hence update the code to comply with this new API
Signed-off-by: Vaibhav Gupta <vaibhav.gupta@cern.ch>