libs/utils/analysis: add IDLE module
libs/utils/analysis: add IDLE module

Signed-off-by: Michele Di Giorgio <99fd0b6f5a4e02a4022988691284da2a0299b046@arm.com>

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