Build ls1043-opteed in RELEASE mode

This platform has exceeded its BL31 limit with the updated AMU code
and is failing CI checks, setting the build in RELEASE mode makes BL31
smaller so it fits in the allotted space.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: Iee2cd41ffa2ef0aeac1b7eb09e6aa1d61f3367f0
1 file changed