tests: update isisd fuzz test

Since the previous commit, if a router capability subTLV is not
readable, the previously read subTLVs are kept.

Update of the ISIS fuzz test.

> $ wuschl rebuild tests/isisd/test_fuzz_isis_tlv
> $ gzip -9 tests/isisd/test_fuzz_isis_tlv_tests.h

> $ ./test_fuzz_isis_tlv 2>/dev/null | grep failed
> Test 139 failed, output differs.
> Test 150 failed, output differs.
> 2 of 405 tests failed.
>
> $ ./test_fuzz_isis_tlv 139 2>/dev/null
> Test 139 failed, output differs.
> Expected output:
> Unpack log:
> Unpacking 564 bytes of TLVs...
>   Unpacking TLV...
>     Found TLV of type 193 and len 13.
>     Skipping unknown TLV 193 (13 bytes)
>   Unpacking TLV...
>     Found TLV of type 0 and len 0.
>     Skipping unknown TLV 0 (0 bytes)
>   Unpacking TLV...
>     Found TLV of type 0 and len 0.
>     Skipping unknown TLV 0 (0 bytes)
>   Unpacking TLV...
>     Found TLV of type 242 and len 12.
>     Unpacking Router Capability TLV...
>     WARNING: Router Capability subTLV length too large compared to expected size
> Unpacked TLVs:
> Received output:
> Unpack log:
> Unpacking 564 bytes of TLVs...
>   Unpacking TLV...
>     Found TLV of type 193 and len 13.
>     Skipping unknown TLV 193 (13 bytes)
>   Unpacking TLV...
>     Found TLV of type 0 and len 0.
>     Skipping unknown TLV 0 (0 bytes)
>   Unpacking TLV...
>     Found TLV of type 0 and len 0.
>     Skipping unknown TLV 0 (0 bytes)
>   Unpacking TLV...
>     Found TLV of type 242 and len 12.
>     Unpacking Router Capability TLV...
>     WARNING: Router Capability subTLV length too large compared to expected size
> Unpacked TLVs:
> Router Capability: 253.212.128.242 , D:1, S:1
>
> $ ./test_fuzz_isis_tlv 150 2>/dev/null
> Test 150 failed, output differs.
> Expected output:
> Unpack log:
> Unpacking 403 bytes of TLVs...
>   Unpacking TLV...
>     Found TLV of type 129 and len 13.
>     Unpacking Protocols Supported TLV...
>       Protocols Supported: 73, 16, 255, 255, 255, 101, 10, 11, 11, 11, 11, 11, 11
>   Unpacking TLV...
>     Found TLV of type 11 and len 11.
>     Skipping unknown TLV 11 (11 bytes)
>   Unpacking TLV...
>     Found TLV of type 242 and len 12.
>     Unpacking Router Capability TLV...
>     WARNING: Router Capability subTLV length too large compared to expected size
> Unpacked TLVs:
> Protocols Supported: 73, 16, 255, 255, 255, 101, 10, 11, 11, 11, 11, 11, 11
> Received output:
> Unpack log:
> Unpacking 403 bytes of TLVs...
>   Unpacking TLV...
>     Found TLV of type 129 and len 13.
>     Unpacking Protocols Supported TLV...
>       Protocols Supported: 73, 16, 255, 255, 255, 101, 10, 11, 11, 11, 11, 11, 11
>   Unpacking TLV...
>     Found TLV of type 11 and len 11.
>     Skipping unknown TLV 11 (11 bytes)
>   Unpacking TLV...
>     Found TLV of type 242 and len 12.
>     Unpacking Router Capability TLV...
>     WARNING: Router Capability subTLV length too large compared to expected size
> Unpacked TLVs:
> Protocols Supported: 73, 16, 255, 255, 255, 101, 10, 11, 11, 11, 11, 11, 11
> Router Capability: 253.212.128.242 , D:1, S:1

Link: https://pypi.org/project/wuschl/
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
(cherry picked from commit cfd050a)

# Conflicts:
#	tests/isisd/test_fuzz_isis_tlv_tests.h.gz