utils/report: switch to a more generic "formats" parameter
utils/report: switch to a more generic "formats" parameter

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

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