Update nuttx submodule #1949

Job	Run time
variables	1s
fc_matrix (fmu-v6xrt) / build	7m 7s
fc_matrix (pixhawk) / build	5m 54s
fc_matrix (saluki-nxp93_flat) / build	6m 11s
fc_matrix (saluki-pi_amp) / build	9m 47s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	9m 35s
fc_matrix (saluki-pi_default) / build	9m 49s
fc_matrix (saluki-pi_flat) / build	6m 53s
fc_matrix (saluki-v2_amp) / build	9m 11s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	9m 18s
fc_matrix (saluki-v2_default) / build	9m 57s
fc_matrix (saluki-v2_flat) / build	7m 7s
fc_matrix (saluki-v3_amp) / build	9m 12s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	9m 21s
fc_matrix (saluki-v3_default) / build	9m 19s
fc_matrix (saluki-v3_flat) / build	6m 46s
build px4fwupdater	2m 22s
upload px4fwupdater to docker registry	1m 28s
upload px4fwupdater to UAE docker registry	0s
upload builds to UAE artifactory	3m 28s
	2h 12m 46s

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