[endurance] Try to use less CPU when packing endurance. Fixes MER#1109
[endurance] Try to use less CPU when packing endurance. Fixes MER#1109

Signed-off-by: Matti Kosola <3feee66a608ed39223b9029a25c4705ee87157e0@jolla.com>

mkosola/crash-reporter,mkosola/crash-reporter,mer-qa/crash-reporter,mkosola/crash-reporter,mer-qa/crash-reporter,mkosola/crash-reporter,mer-qa/crash-reporter