cdc_acm_check.cpp: Fix to compile even if reset is not supported #1355

Job	Run time
variables	1s
fc_matrix (pixhawk) / build	5m 42s
fc_matrix (saluki-pi_amp) / build	8m 43s
fc_matrix (fmu-v6xrt) / build	6m 47s
fc_matrix (saluki-nxp93_flat) / build	5m 13s
fc_matrix (saluki-pi_default) / build	9m 10s
fc_matrix (saluki-pi_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-pi/px4_bin_ed25519_... / build	14m 1s
fc_matrix (saluki-pi_flat) / build	7m 14s
fc_matrix (saluki-v2_amp) / build	9m 16s
fc_matrix (saluki-v2_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v2/px4_bin_ed25519_... / build	8m 43s
fc_matrix (saluki-v2_default) / build	8m 48s
fc_matrix (saluki-v2_flat) / build	6m 30s
fc_matrix (saluki-v3_amp) / build	9m 10s
fc_matrix (saluki-v3_custom_keys, Tools/saluki-sec-scripts/custom_keys/saluki-v3/px4_bin_ed25519_... / build	8m 39s
fc_matrix (saluki-v3_default) / build	9m 2s
fc_matrix (saluki-v3_flat) / build	6m 46s
build px4fwupdater	2m 10s
upload builds to UAE artifactory	3m 36s
upload px4fwupdater to docker registry	1m 29s
upload px4fwupdater to UAE docker registry	0s
	2h 11m 0s

Provide feedback