ipynb: rtapp: add another example of workload generation
ipynb: rtapp: add another example of workload generation

This notebook provides some more example of workloads generation
using the wlgen::RTA "profile" based API.

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

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