Fix tcp option parsing (#966)

[amitlimaye]

Description

Changes proposed in this pull request.

Test plan

Outline the test plan used to test this change before merging it.

Fixes #.

[amitlimaye]

/build - automatically fired by gogo with following PRs and commit SHAs v1.0.0

[
  {
    "project": "",
    "component": "trireme-lib",
    "pr-id": "970",
    "commit-sha": "911958a2609282c0d658f622d17e459c3d84cedf",
    "pipeline": "master"
  },
  {
    "project": "",
    "component": "enforcerd",
    "pr-id": "1578",
    "commit-sha": "eeafa00a136851bd20b42909ccf53d26e943d10e",
    "pipeline": "master"
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]

[codecov[bot]]

Codecov Report

Merging #970 into master will decrease coverage by 0.15%. The diff coverage is 63.63%.

@@            Coverage Diff             @@
##           master     #970      +/-   ##
==========================================
- Coverage   54.46%   54.31%   -0.16%     
==========================================
  Files         122      122              
  Lines       11732    11737       +5     
==========================================
- Hits         6390     6375      -15     
- Misses       4714     4739      +25     
+ Partials      628      623       -5

Impacted Files	Coverage Δ
controller/pkg/packet/packet.go	52.08% <63.63%> (+0.13%)	:arrow_up:
monitor/extractors/linux.go	48.78% <0%> (-21.96%)	:arrow_down:

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