bmm : sync with bmm-lib

BugLink: http://bugs.launchpad.net/bugs/611634

 commit a50d57bac00d197a90cc39f36977fba9a07235b9
 bmm: obsolete attr for back compatible

BMM_ATTR_NONBUFFERABLE & BMM_ATTR_NONCACHEABLE

Signed-off-by: Zhangfei Gao <zgao6@marvell.com>
Signed-off-by: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Brad Figg <brad.figg@canonical.com>