LoadMon.cpp: Add px4_ prefix to enter/exit_critical() calls #2165

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Job	Run time
variables	1s
fc_matrix (saluki-nxp93_flat) / build	6m 32s
fc_matrix (saluki-nxp93_default) / build	8m 36s
fc_matrix (saluki-pi_amp) / build	9m 41s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	9m 58s
fc_matrix (saluki-pi_default) / build	9m 24s
fc_matrix (saluki-pi_flat) / build	6m 57s
fc_matrix (saluki-v2_amp) / build	9m 23s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	9m 26s
fc_matrix (saluki-v2_default) / build	9m 49s
fc_matrix (saluki-v2_flat) / build	7m 23s
fc_matrix (saluki-v3_amp) / build	9m 27s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	9m 29s
fc_matrix (saluki-v3_flat) / build	7m 14s
fc_matrix (saluki-v3_default) / build	9m 17s
build px4fwupdater	2m 8s
upload builds to UAE artifactory	4m 29s
upload px4fwupdater to docker registry	1m 52s
upload px4fwupdater to UAE docker registry	0s
	2h 11m 6s

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