morello: Configure the default OPP to the highest
Created by: anukou
Change the DVFS sustained index of the Morello platforms (SoC and FVP) to boot at the highest supported OPP level.
Signed-off-by: Anurag Koul anurag.koul@arm.com Change-Id: Id2dfb5fa585d9aae03249496348529e5304c3e97