logger: parallel mavlink logging #850

Job	Run time
fc_matrix (saluki-pi_bootloader) / build	4m 57s
fc_matrix (saluki-pi_amp) / build	9m 35s
fc_matrix (pixhawk) / build	9m 29s
fc_matrix (saluki-pi_default) / build	8m 25s
fc_matrix (saluki-pi_protected) / build	10m 44s
fc_matrix (saluki-v2_amp) / build	8m 20s
fc_matrix (saluki-v2_bootloader) / build	4m 41s
fc_matrix (saluki-v2_default) / build	8m 49s
fc_matrix (saluki-v2_kernel) / build	13m 34s
fc_matrix (saluki-v2_protected) / build	9m 8s
fc_matrix (saluki-v3_amp) / build	10m 5s
fc_matrix (saluki-v3_default) / build	8m 47s
build px4fwupdater	2m 12s
upload px4fwupdater to docker registry	56s
upload px4fwupdater to UAE docker registry	1m 29s
upload builds to UAE artifactory	1m 19s
upload builds to artifactory	1m 7s
	1h 53m 37s

Provide feedback