Disallow potentially unaligned data accesses.
Disallow potentially unaligned data accesses.

Unaligned accesses are complicated. Some architectures don't allow them
at all, some optionally don't allow it and others split it into multiple
accesses for a single instruction. Accesses the straddle a page boundary
may fault for one part but not another adding to the complications. This
would add complexity to any ISA level proofs too.

ATF boots into a mode with unaligned accesses generating exceptions so
we need to turn it off to get running on the FVP.

Bug: 117551008
Change-Id: I42ebf0feb9b99db96e03c5e01b879f2500776aa5

project-oak/hafnium-verification,project-oak/hafnium-verification,project-oak/hafnium-verification,project-oak/hafnium-verification,project-oak/hafnium-verification,project-oak/hafnium-verification,project-oak/hafnium-verification