bluetooth: parse every advertising set in Set_Extended_Advertise_Enable

[mmadersbacher]

HCI_Cmd_LE_Set_Extended_Advertise_Enable.sets returns a single entry no matter what num_sets says.

Extended_Advertise_Set does not override extract_padding, so the first set claims the following sets as its payload and PacketListField finds nothing left to parse.

>>> p = HCI_Cmd_LE_Set_Extended_Advertise_Enable(hex_bytes("01020164000502c8000a"))
>>> p.num_sets, len(p.sets)
(2, 1)
>>> bytes(p.sets[0].payload)
b'\x02\xc8\x00\n'

After the change len(p.sets) == 2 and the second set reads handle=2 duration=200 max_events=10. Rebuilding returns the same bytes either way. HCI_LE_Meta_Extended_Advertising_Report already carries the same extract_padding further down the module.

Validated on Windows with Python 3.13. UTscapy -t test/scapy/layers/bluetooth.uts gives 90 passed, 0 failed, with two cases added for two sets and one set. flake8 scapy/ and mypy_check.py (win32 and linux) are clean. The full windows.utsc campaign gives 96 failures, the same count and the same files as on master, all unrelated and caused by missing tcpdump, tshark and libpcap here.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.78%. Comparing base (1f87020) to head (23269e2).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5094      +/-   ##
==========================================
+ Coverage   79.42%   79.78%   +0.35%     
==========================================
  Files         372      372              
  Lines       96507    96562      +55     
==========================================
+ Hits        76652    77042     +390     
+ Misses      19855    19520     -335     

Files with missing lines	Coverage Δ
scapy/layers/bluetooth.py	90.84% <100.00%> (+0.01%)	⬆️

... and 41 files with indirect coverage changes

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