package/wireshark: fix legal info

Commit 4aca99f51cc97cfc3bcd3affa65f4694004dd444 forgot to update hash of
COPYING file and add hash of README.md due to the following commit which
moved the introductory note about the GPL from the COPYING license text
file to the README:
https://github.com/wireshark/wireshark/commit/d2b6b89b94bd3e18520c472affae9cd4a03283e2

Fixes:
 - http://autobuild.buildroot.org/results/aaed32b55cc56beb32152ed61ac9b7f69d3ebef5

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/wireshark/wireshark.hash

@@ -3,4 +3,5 @@ sha1  0127180ff18515b086fe5603f767f53ddaa64c1a  wireshark-4.0.2.tar.xz
 sha256  f35915699f2f9b28ddb211202d40ec8984e5834d3c911483144a4984ba44411d  wireshark-4.0.2.tar.xz
 
 # Locally calculated
-sha256  7cdbed2b697efaa45576a033f1ac0e73cd045644a91c79bbf41d4a7d81dac7bf  COPYING
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING
+sha256  fce67c1558e448fac784ce9a30cb47956488bc3ef6ec16316c38b0668b3cad2e  README.md

package/wireshark/wireshark.mk

@@ -8,7 +8,7 @@ WIRESHARK_VERSION = 4.0.2
 WIRESHARK_SOURCE = wireshark-$(WIRESHARK_VERSION).tar.xz
 WIRESHARK_SITE = https://www.wireshark.org/download/src/all-versions
 WIRESHARK_LICENSE = wireshark license
-WIRESHARK_LICENSE_FILES = COPYING
+WIRESHARK_LICENSE_FILES = COPYING README.md
 WIRESHARK_CPE_ID_VENDOR = wireshark
 WIRESHARK_SELINUX_MODULES = wireshark
 WIRESHARK_DEPENDENCIES = \