- Fix possible run-time ELs value and xlat-granule size.
- Remove mandatory field for stream-ids.
- Define interrupts attributes to <u32>.
- Remove mem-manage field.
- Add description for memory/device region attributes.

Co-authored-by: Manish Pandey <manish.pandey2@arm.com>
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I71cf4406c78eaf894fa6532f83467a6f4110b344