nxp: add data handler used by bl31

bl31-data file written in assembly helps to manage data at bl31.

Signed-off-by: rocket <rod.dorris@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: Ic3ace03364648cc1174bb05b5b334b9ccdaaa4ed
1 file changed