arm: Allow CPU-supported unaligned accesses 

This change reconfigures the CPU to allow CPU-supported unaligned accesses, which are generally faster than software-only fixups, resulting in fewer alignment exceptions.

Change-Id: Ifaba8af2696b90d84e3462399f50e13bfa082103
Signed-off-by: Brent DeGraaf <bdegraaf@codeaurora.org>
Signed-off-by: Evisceration <eviscerationls@gmail.com>