wireshark: bump version to 2.2.2 (security)

Release notes:
  https://www.wireshark.org/docs/relnotes/wireshark-2.2.2.html

Security fixes:
  wnpa-sec-2016-62. DTN infinite loop.
  wnpa-sec-2016-61. DCERPC crash.
  wnpa-sec-2016-60. OpenFlow crash.
  wnpa-sec-2016-59. AllJoyn crash.
  wnpa-sec-2016-58. Profinet I/O long loop.

  For more details: https://www.wireshark.org/security/



Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>