lib/show_mem.c: add cma reserved information

Add cma reserved information which is currently shown as a part of total
reserved only.  This patch is continuation of our previous cma patches
related to this.

  https://lkml.org/lkml/2014/10/20/64
  https://lkml.org/lkml/2014/10/22/383

[[email protected]: remove hopefully-unneeded ifdefs]
Signed-off-by: Vishnu Pratap Singh <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Xishi Qiu <[email protected]>
Cc: Pintu Kumar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed