platforms/nuttx/src/px4/common/px4_24xxxx_mtd.c: Add BIOC_FLUSH #2290

Job	Run time
variables	1s
fc_matrix (saluki-nxp93_flat) / build	6m 39s
fc_matrix (saluki-nxp93_default) / build	9m 20s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	10m 18s
fc_matrix (saluki-pi_amp) / build	9m 41s
fc_matrix (saluki-pi_flat) / build	7m 19s
fc_matrix (saluki-pi_default) / build	10m 10s
fc_matrix (saluki-v2_amp) / build	9m 58s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	9m 41s
fc_matrix (saluki-v2_default) / build	9m 35s
fc_matrix (saluki-v2_flat) / build	7m 27s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	9m 52s
fc_matrix (saluki-v3_amp) / build	9m 51s
fc_matrix (saluki-v3_default) / build	9m 42s
fc_matrix (saluki-v3_flat) / build	7m 11s
build px4fwupdater	2m 12s
upload builds to UAE artifactory	3m 46s
upload px4fwupdater to docker registry	3m 28s
upload px4fwupdater to UAE docker registry	0s
	2h 16m 11s

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