wireshark: bump version to 2.2.6 (security)

Security fixes:

- wnpa-sec-2017-12
  IMAP dissector crash (Bug 13466) CVE-2017-7703
- wnpa-sec-2017-13
  WBMXL dissector infinite loop (Bug 13477) CVE-2017-7702
- wnpa-sec-2017-14
  NetScaler file parser infinite loop (Bug 13478) CVE-2017-7700
- wnpa-sec-2017-15
  RPCoRDMA dissector infinite loop (Bug 13558) CVE-2017-7705
- wnpa-sec-2017-16
  BGP dissector infinite loop (Bug 13557) CVE-2017-7701
- wnpa-sec-2017-17
  DOF dissector infinite loop (Bug 13453) CVE-2017-7704
- wnpa-sec-2017-18
  PacketBB dissector crash (Bug 13559)
- wnpa-sec-2017-19
  SLSK dissector long loop (Bug 13576)
- wnpa-sec-2017-20
  SIGCOMP dissector infinite loop (Bug 13578)
- wnpa-sec-2017-21
  WSP dissector infinite loop (Bug 13581)

Full release notes:

  https://www.wireshark.org/docs/relnotes/wireshark-2.2.6.html

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 156e31e5b3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/wireshark/wireshark.hash

@@ -1,2 +1,2 @@
-# From: https://www.wireshark.org/download/src/all-versions/SIGNATURES-2.2.5.txt
-sha256 75dd88d3d6336559e5b0b72077d8a772a988197d571f00029986225fef609ac8  wireshark-2.2.5.tar.bz2
+# From: https://www.wireshark.org/download/src/all-versions/SIGNATURES-2.2.6.txt
+sha256 f627d51eda85f5ae5f5c8c9fc1f6539ffc2a270dd7500dc7f67490a8534ca849  wireshark-2.2.6.tar.bz2

package/wireshark/wireshark.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-WIRESHARK_VERSION = 2.2.5
+WIRESHARK_VERSION = 2.2.6
 WIRESHARK_SOURCE = wireshark-$(WIRESHARK_VERSION).tar.bz2
 WIRESHARK_SITE = https://www.wireshark.org/download/src/all-versions
 WIRESHARK_LICENSE = wireshark license