Convert storage related UUIDs to GUID octet order

For better compatibility with UEFI components, this commit
converts the octet representation of UUIDs used for disk
and partition identification to the little-endian representation
instead of the standard big-endian representation.

Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: I5281e465a9336fcf64e4e1639c320f4e3e8e33d0
10 files changed