libpcap: Update shared-lib patch from Debian to fix linking problems

libpcap: Update shared-lib patch from Debian to fix linking problems

This updates the shared-lib patch to the recent version from debian
found here:
https://salsa.debian.org/rfrancoise/libpcap/-/blob/debian/1.9.1-2/debian/patches/shared-lib.diff

This patch makes it include missing/strlcpy.o to the shared library
which is needed for OpenWrt glibc builds, otherwise there is an
undefined symbol and tcpdump and other builds are failing.

Fixes: 44f11353de04 ("libpcap: update to 1.9.1")
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>