netboot cleanup for additional files #955

Job	Run time
f41 x64 build compile_commands.json	2m 46s
f41 x64 build	2m 4s
f40 x64 build	2m 9s
f41 aa64 cross-build	1m 59s
f39 x64 build	2m 2s
centos9 x64 build	1m 7s
f40 aa64 cross-build	2m 5s
f41 arm cross-build	2m 10s
centos8 x64 build	1m 18s
f39 ia32 build	1m 55s
f40 arm cross-build	1m 48s
f39 arm cross-build	1m 52s
centos8 ia32 build	1m 14s
f41 x64 cross-build	1m 56s
f40 x64 cross-build	2m 5s
f39 x64 cross-build	2m 4s
f41 ia32 cross-build	1m 59s
f40 ia32 cross-build	1m 57s
f39 ia32 cross-build	1m 59s
	36m 29s

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