libs/utils/executor: fix profile task definition
libs/utils/executor: fix profile task definition

This fixes the generation of the profile workloads following the
refactoring of the RTA profile generator classes.

Signed-off-by: Patrick Bellasi <431c86f368affbc3148c4669fbd465131f7e82cb@arm.com>

mdigiorgio/lisa,ARM-software/lisa,ARM-software/lisa,credp/lisa,joelagnel/lisa,arnoldlu/lisa,credp/lisa,arnoldlu/lisa,ARM-software/lisa,bjackman/lisa,bjackman/lisa,mdigiorgio/lisa,JaviMerino/lisa,credp/lisa,joelagnel/lisa,credp/lisa,ARM-software/lisa