mm/zsmalloc.c: change stat type parameter to int

zs_stat_inc/dec/get() uses enum zs_stat_type for the stat type, however
some callers pass an enum fullness_group value.  Change the type to int to
reflect the actual use of the functions and get rid of 'enum-conversion'
warnings

Change-Id: I15afde493223afdfeb4d007dfa3359a34f6d1df7
Link: http://lkml.kernel.org/r/20170731175000.56538-1-mka@chromium.org


Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-Commit: 3eb95feac113d8ebad5b7b5189a65efcbd95a749
Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git


Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>