dmapi: add new recipe

The Data Management API (DMAPI/XDSM) allows implementation
of hierarchical storage management software with no kernel
modifications as well as high-performance dump programs
without requiring "raw" access to the disk and knowledge
of filesystem structures.This interface is implemented by
the libdm library.

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>