fix(morello): fix path for OpenCI.

downloads.trustedfirmware.org cannot cope with // in the path, fixing
morello SCP/MCP prebuilts path.

Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Change-Id: I291413e8871eb3047b6d25731552045f170bc0b0
1 file changed